“A Project Proposal of Ooho Spheres As an Alternative Eco-Friendly Plastic Bottles: Vol.3, No.1D”. 2024. Ascendens Asia Singapore – Bestlink College of the Philippines Journal of Multidisciplinary Research 3 (1D). https://ojs.aaresearchindex.com/index.php/aasgbcpjmra/article/view/13399.