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Study of Two Important River Systems in Sri Lanka with Respect to Pollutant Transport in to the Coastal Region by De Alwis, Padmini Publication: Colombo 15, National Aquatic Resources Agency, 1998 . 59p. 29.5cm. Date: 1998 Availability: Items available: Reference (1),

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Nuwara Eliya Lake-Preliminary Result of an Environmental Survey by Dassanayake, Hemantha Publication: Sri Lanka, Sri Lanka Association for the Advancement of Science, 1988 . 18p. Date: 1988 Availability: Items available: Reference (1),

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Water Quality of the Belihul-Oya and Horton Plains by Dassanayake, Hemantha Publication: Sri Lanka, Sri Lanka Association for the Advancement of Science, 1988 . 18p. Date: 1988 Availability: Items available: Reference (1),

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Estuarine Studies-Variations of Some Physical Chemical & Microbiological Parameters in Three Selected Systems by Dassanayake, N.H. Publication: Sri Lanka, NARA, 1986 . 32p. Date: 1986 Availability: Items available: Reference (1),

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Study on the water quality aspects in Hikkaduwa marine sanctuary by De Alwis, Padmini Publication: Colombo, NARA, 1994 . 36p. Date: 1994 Availability: Items available: Reference (1),

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