Chantawee, B., Udomsak, P. V. and Sritrakarn, T. (2020) “A Study of Responsibility Development of Students in 21St Century Opportunity Expansion School in Phra Nakhon Si Ayutthaya Primary Education Service Area Office 1”, Arts of Management Journal. Bangkok, Thailand, 4(1), pp. 23–33. available at: https://so02.tci-thaijo.org/index.php/jam/article/view/240452 (accessed: 12 September 2026).