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DESIGN AND OPERATION OF AN AIR LIFT REACTOR FOR PRODUCTION OF MONOCLONAL-ANTIBODIES BY IMMOBILIZED HYBRIDOMA CELLS. (1990). PERIODICUM BIOLOGORUM 92 (1), 121-122, 1990.
GarwinKim Sing,,
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Design and development of potato grader. (1990). AMA, Agricultural Mechanization in Asia, Africa and Latin America 21 (1), 40-49, 1990.
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Comparative development and seasonal abundance of hadda beetle, Henosepilachna vigintioctopunctata (Fabr.) on some solanaceous host plants. (1990). Journal of Research-Punjab Agricultural University 27 (2), 253-262, 1990.