Research study
Hector Kobbekaduwa Agrarian Research & Training Institute
L.P. Rupasena ... [et al.]
Hector Kobbekaduwa Agrarian Research and Training Institute 1999 Research study no. 103
所蔵館1館
T.A. Dharmaratne, S. Dharmalingam, Ranjanee Athukorala
Hector Kobbekaduwa Agrarian Research & Training Institute 1999 Research study no. 101
M.L.M. Ariyabandu, J.K.M.D. Chandrasiri
Hector Kobbekaduwa Agrarian Research & Training Institute 1999 Research study no. 98