Prof. Dr. Patthira Phon-ngam (2021) “A PARTICIPATORY ACTION RESEARCH FOR A DEVELOPMENT OF HEALTHY PROMOTION MODELS FOR THE AGING IN THAILAND”, Researchers World - International Refereed Social Sciences Journal, 2(3), pp. 60–71. Available at: https://www.researchersworld.com/index.php/rworld/article/view/254 (Accessed: 25 August 2025).