M. Suresh, S.Sarathi and C.Prithviraj 2016. THEORETICAL EFFICIENCY ESTIMATION OF A SOLAR AIR DRYER USED FOR DRYING BITTER GOURD . International journal of intellectual advancements and research in engineering computations. 4, 2 (Feb. 2016), 61–66. DOI:https://doi.org/10.61096/ijiarec.v4.iss2.2016.61-66.