TY - BOOK AU - Singh, Upendra Prasad. TI - Study on Ability, Willingness, Knowledge and Adoption Behaviour of Different Categories of Farmers in Relation to Scientific Rice Production Technology in Siwan District of North Bihar / U1 - 630.717 PY - 1987/// CY - .- Pusa, Samastipur PB - : RAU KW - Extension Education KW - Farmers KW - Rice KW - Siwan KW - Thesis KW - M. Sc ER -