Chanchaipitiphat N, SIRIATTAKUL P, MARZO R. IS “HAPPINESS” UNIVERSALLY MEASURABLE? A LIFESPAN CRITIQUE OF AGE-SPECIFIC DEFINITIONS AND METHODOLOGICAL FLAWS. TMSR [internet]. 2025 Dec. 18 [cited 2026 Sep. 24];1(1):Article 3. available from: https://so15.tci-thaijo.org/index.php/TMSR/article/view/2484