“Consumers’ Purchase Intention towards Eco-Friendly Packaging in Kidapawan City, Philippines”. DISCERN: International Journal of Design for Social Change, Sustainable Innovation and Entrepreneurship 3, no. 2 (November 6, 2022): 28–37. Accessed August 21, 2025. https://designforsocialchange.org/journal/index.php/DISCERN-J/article/view/90.