Gunawan, M. L.; Rasrendra, C. B.; Widikrama, C. L.; Kurniawan, R. G.; Nisa, L. M.; Hudaya, F. Y. P.; Makertihartha, I. G. B. N.; Subagjo, S. Investigation of the Effect of Silica and Phosphorus Content on the Performance of Active Matrix As Component of Cracking Catalyst. J. Eng. Technol. Sci. 2024, 56, 205-218.