p n jha

P. N. Jha · Dept. of Extension Education, Rajendra Agricultural University, Bihar

58 sayfa · 1981

University extension / Congresses

P. N. Jha, Shreedhar Narayan Pandey · Dept. of Extension Education, Rajendra Agricultural University, Bihar

Sayfa sayısı yok · 1981

University extension

Harish Kumar Dhingra, P. N. Jha, P. Bajpai · Nova Science Publishers, Incorporated

123 sayfa · 2013

Biotechnology / Genetic engineering