Remani, K. N, Harikumar P. S, and Shiny K. J (2004) Ecological status of Chitrapuzha river with reference to discharge of Industrial effluents in Cochin Area., Ecology Environment and Conservation 10 183-186.

Remani, K. N, Harikumar P. S, and Shiny K. J (2004) Ecological status of Chitrapuzha river with reference to discharge of Industrial effluents in Cochin Area., Ecology Environment and Conservation 10 183-186.

Remani, K. N, Harikumar P. S, and Shiny K. J (2004) Ecological status of Chitrapuzha river with reference to discharge of Industrial effluents in Cochin Area., Ecology Environment and Conservation 10 183-186.

Harikumar, P. S., Madhavan, K., & Khan, A. B. (2000). Water quality problems of Kerala with special reference to fluoride. Ecology Environment and Conservation, 6, 245-249.

Harikumar, P. S., Madhavan, K., & Khan, A. B. (2000). Water quality problems of Kerala with special reference to fluoride. Ecology Environment and Conservation, 6, 245-249.

Harikumar, P. S., Madhavan, K., & Khan, A. B. (2000). Water quality problems of Kerala with special reference to fluoride. Ecology Environment and Conservation, 6, 245-249.

K.J.Shiny, Nirmala.ET.K.Jalaja, K.N.Remani (2000). Development of Biological Models for water purification using Aquatic FaunaJournal of Environmental Science and Engineering. Vol.46, No.3, pp 249 – 251.

K.J.Shiny, Nirmala.ET.K.Jalaja, K.N.Remani (2000). Development of Biological Models for water purification using Aquatic FaunaJournal of Environmental Science and Engineering. Vol.46, No.3, pp 249 – 251.

K.J.Shiny, Nirmala.ET.K.Jalaja, K.N.Remani (2000). Development of Biological Models for water purification using Aquatic FaunaJournal of Environmental Science and Engineering. Vol.46, No.3, pp 249 – 251.

Lakshmi, K, Narayanan Unni P N and Harikumar P S (2000) "Environmental Status of the Mangrove Ecosystem in Valapattanam River Basin, Kerala." Ecology, Environment & Conservation 6.4 : 363-371

Lakshmi, K, Narayanan Unni P N and Harikumar P S (2000) "Environmental Status of the Mangrove Ecosystem in Valapattanam River Basin, Kerala." Ecology, Environment & Conservation 6.4 : 363-371

Lakshmi, K, Narayanan Unni P N and Harikumar P S (2000) "Environmental Status of the Mangrove Ecosystem in Valapattanam River Basin, Kerala." Ecology, Environment & Conservation 6.4 : 363-371

Harikumar P S, Narayanan p and Sivasankara Pillai(1988), Cyclic Voltammetric Studies on Electrocatalysis by Plasma Treated Cobalt Phthalocyanine, Bulletin of Electrochemistry (4), 233-236

Harikumar P S, Narayanan p and Sivasankara Pillai(1988), Cyclic Voltammetric Studies on Electrocatalysis by Plasma Treated Cobalt Phthalocyanine, Bulletin of Electrochemistry (4), 233-236

Harikumar P S, Narayanan p and Sivasankara Pillai(1988), Cyclic Voltammetric Studies on Electrocatalysis by Plasma Treated Cobalt Phthalocyanine, Bulletin of Electrochemistry (4), 233-236

Harikumar P S and Sivasankara Pillai V N (1990) Mediation of Elcetron Transfer by Cobalt Tetrasulphopthalocyanaine Incorporated poly(o-toluidine) (1990), Bulletin of Electrochemistry, 6.

Harikumar P S and Sivasankara Pillai V N (1990) Mediation of Elcetron Transfer by Cobalt Tetrasulphopthalocyanaine Incorporated poly(o-toluidine) (1990), Bulletin of Electrochemistry, 6.

Harikumar P S and Sivasankara Pillai V N (1990) Mediation of Elcetron Transfer by Cobalt Tetrasulphopthalocyanaine Incorporated poly(o-toluidine) (1990), Bulletin of Electrochemistry, 6.

Harikumar P S and Sivasankara Pillai V N (1990) Oxidative transformation in iodine doped cobalt phthalocyanine Journal of Materials Science Letters November 1990, Volume 9, Issue 11, pp 1324-1325

Harikumar P S and Sivasankara Pillai V N (1990) Oxidative transformation in iodine doped cobalt phthalocyanine Journal of Materials Science Letters November 1990, Volume 9, Issue 11, pp 1324-1325

Harikumar P S and Sivasankara Pillai V N (1990) Oxidative transformation in iodine doped cobalt phthalocyanine Journal of Materials Science Letters November 1990, Volume 9, Issue 11, pp 1324-1325

Harikumr P S and Sivasankara Pillai V N Doping Enhanced Electrical Conductivity and Electrocatalytic Activity by Cobalt Phtalocyanaine (1989) Journal of Material Science Letters (8) 969

Harikumr P S and Sivasankara Pillai V N Doping Enhanced Electrical Conductivity and Electrocatalytic Activity by Cobalt Phtalocyanaine (1989) Journal of Material Science Letters (8) 969

Harikumr P S and Sivasankara Pillai V N Doping Enhanced Electrical Conductivity and Electrocatalytic Activity by Cobalt Phtalocyanaine (1989) Journal of Material Science Letters (8) 969

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