MANIAM, G.; HINDRYAWATI, N.; YUSOFF, M. Rice Husk Silica Supported Oil Palm Fruit Ash as a Catalyst in the Transesterification of Waste Frying Oil. Journal of Engineering and Technology (JET), [S. l.], v. 6, n. 1, p. 1–12, 2015. Disponível em: https://jet.utem.edu.my/jet/article/view/180. Acesso em: 28 apr. 2024.