เวชยันต์วิวัฒน์ พ. “The Effects of Distributed Leadership, Teacher’s Psychological States, and School Organizations on Private School Teachers’ Professional Learning”. Rajapark Journal, vol. 11, no. 23, Feb. 2019, pp. 145-56, https://so05.tci-thaijo.org/index.php/RJPJ/article/view/171907.