Bibon, Michael B. “Indigenous Knowledge Meets Science: A Saponin Phytochemical Screening of Folk Medicines Used for Treating Cough and Colds in Cagraray Island, Philippines”. International Journal of Scientific Research in Biological Sciences 8, no. 5 (October 31, 2021): 8–15. Accessed April 4, 2025. https://ijsrbs.isroset.org/index.php/j/article/view/486.