Rupnar, A. K., Sudhir Jain, N. L. Panwar, and S. K. Jain. “Design and Development of Solar-Biogas Hybrid Dryer for Onion Drying”. International Journal of Environment and Climate Change 10, no. 7 (June 5, 2020): 65-73. Accessed January 19, 2021. https://journalijecc.com/index.php/IJECC/article/view/30212.