Fitria, A., Trisunaryanti, W., Triyono and Santoso, I. 2024. Synthesis, characterization and performance of Ni/mesoporous silica - NH\(_2\)/mesoporous silica and Ni-NH\(_2\)/mesoporous silica as bifunctional catalyst in one step conversion of waste palm oil to biodiesel. Communications in Science and Technology. 9, 2 (Dec. 2024), 430-441. DOI:https://doi.org/10.21924/cst.9.2.2024.1483.