Igdalino, C. J. ., E. L. . Papina, K. M. . Morris, A. . Compe, C. . Gregorio, and K. J. . Embile. “Effectiveness of Using Garbage Hoops for Strategic Plastic Bottles Disposal”. Ascendens Asia Singapore – Bestlink College of the Philippines Journal of Multidisciplinary Research, vol. 2, no. 1, Apr. 2020, https://ojs.aaresearchindex.com/index.php/aasgbcpjmra/article/view/2557.