Techno-Economic Analysis and Physicochemical Properties of Ceiba pentandra as Second-Generation Biodiesel Based on ASTM D6751 and EN 14214 by Jamaluddin, N.A.M., Riayatsyah, Teuku Meurah Indra, Silitonga, Arridina Susan, Mofijur, M., Shamsuddin, Abd Halim, Ong, Hwai Chyuan, Mahlia, Teuku Meurah Indra, Rahman, S.M. Ashrafur