Yazar
Yogendra Pal Singh
2 cilt bulundu.
Cilt sonuçları
Key-communicators of agricultural innovations
Yogendra Pal Singh · Satish Book Enterprise
204 sayfa · 1973
Agricultural innovations / Communication in agriculture
Diffusion of an interdiscipline
Yogendra Pal Singh · Published by New Heights for Indian Society of Extension Education
191 sayfa · 1974
Academic Dissertations / Agricultural extension work / Agriculture / Bibliography / Social sciences