Al Ghifari, M. Iqbal, and Samik Samik. “REVIEW: PRODUCTION OF BIODIESEL WITH TRANSESTERIFICATION METHOD USING CATALYST MADE FROM WASTE BONE”. Unesa Journal of Chemistry, vol. 12, no. 1, Jan. 2023, pp. 1-11, doi:10.26740/ujc.v12n1.p1-11.