Wijeratne, Mahinda
Farmer, Extension and Research in Sri Lanka :An Empirical Study of the Agricultural Knowledge System with Special Reference to Matara District - Matara University of Ruhuna 1988 - xxii,278p.
N/A
371.35 WIJ
Farmer, Extension and Research in Sri Lanka :An Empirical Study of the Agricultural Knowledge System with Special Reference to Matara District - Matara University of Ruhuna 1988 - xxii,278p.
N/A
371.35 WIJ