คล้ายคลึง ท. “An Analytical Study on the Origin of ‘Nibbānaṁ Paramaṁ Suññaṁ’”. Mahachula Academic Journal, vol. 13, no. 1, Feb. 2026, pp. 15-29, https://so04.tci-thaijo.org/index.php/JMA/article/view/285394.