1. Types and usages of wheat threshers in Punjab;Kaul,1975
2. Deep placement fertilizer application for improved fertilizer use efficiency;Khan;Agric. Mech. Asia, Afr. Latin Am. (AMA),1984
3. Biennial report, Energy requirements in agricultural sector — an ICAR coordinated project, 1981–1983;Mittal,1983
4. Energetics of a developing agriculture — a case study of the production agriculture of Punjab;Pathak,1982
5. Energy for agricultural development;Pathak,1983