“An Investigatory Research on Orcagin Syrup as an Alternative Cough Relief” (2019) Ascendens Asia Singapore – Bestlink College of the Philippines Journal of Multidisciplinary Research, 1(1). Available at: https://ojs.aaresearchindex.com/index.php/aasgbcpjmra/article/view/989 (Accessed: 15 March 2026).