S. Ocal, R. B. Ferrer, K. Namoc, and S. C. S. De Guzman, “Phytochemical Analysis and Cytotoxicity Potential of Pittosporum pentandrum (Mamalis) Crude Leaf Extract Using Brine Shrimp Lethality Assay”, AJMS, vol. 1, no. 1, pp. 50–60, Dec. 2018.