1. On optimum suction state for vapour compression cycle;Dhar,1972
2. Optimum interstage temperature for cascade systems;Dhar,1973
3. Optimum design of finned surfaces;Dhar;J. Franklin Inst.,1976
4. P.L. Dhar, Optimization in refrigeration systems, PhD thesis, IIT, Delhi, 1974.
5. Design of direct expansion chillers;Dhar,1975