Sensang, P., T. Jomvong, R. Santianotai, and W. Chattinnawat. “New Product Development Framework Based on University-Community Engagement: Case Study of Thailand OTOP Development for Elderly Consumer”. International Journal of Global Optimization and Its Application 1, no. 1 (March 31, 2022): 1–11. Accessed September 8, 2024. https://journal.srnintellectual.com/index.php/ijgoia/article/view/8.