Mongia, P., & Lakanpal, T. (1988). Rural energy alternatives in the hill areas: Social forestry and biogas systmes. Today and Tomorrows Printers and Publishers.

Mongia, Pradeep, and T.N Lakanpal. Rural Energy Alternatives in the Hill Areas: Social Forestry and Biogas Systmes. New Delhi: Today and Tomorrows Printers and Publishers, 1988.

Mongia, Pradeep, and T.N Lakanpal. Rural Energy Alternatives in the Hill Areas: Social Forestry and Biogas Systmes. Today and Tomorrows Printers and Publishers, 1988.