Mawarani, L. J. ., Sihombing, T. A. ., Risanti, D. D. ., Massadeh, M. I. . and Prananto, D. . (2021) “Utilization of Chicken Eggshells as Catalyst in Biodiesel Synthesis from Waste Cooking Oil: Chicken Eggshells as Catalyst in Biodiesel Synthesis from Waste Cooking Oil”, Proceedings of the Pakistan Academy of Sciences: A. Physical and Computational Sciences, 58(S), pp. 85–95. doi: 10.53560/PPASA(58-sp1)737.