00497 a2200169 4500 9789553031198 631.584 DIA 32228 56961 ඩයස්, උපාලි ජේ. විස රසායනයෙන් තොර ගෙවත්තක් කොළඹ. ඇස්. ගොඩගේ 2011 2011 xiii, 280p. 22cm. organic farming Agriculture Cultivation L 58731 58731 0 0 0 0 LEN MAIN MAIN LEN 2016-09-28 0 631.584DIA 35730 2016-09-28 00:00:00 0.00 2016-10-31 L 0 0 0 0 LEN MAIN MAIN LEN 2016-09-28 0 631.584DIA 35731 2017-09-02 00:00:00 0.00 2016-10-31 L 0 0 ddc 0 0 LEN MKDL MKDL LEN 2017-06-15 2 631.584 DIA 67634 2021-04-19 00:00:00 2020-02-25 2017-06-15 L 0 0 ddc 0 0 LEN MKDL MKDL LEN 2017-09-27 1 631.584 DIA 67162 2018-06-19 00:00:00 2018-06-04 2017-09-27 L