นิยะโต ต. “The Effectiveness of the Services of Lad Sawai Municipality, Lam Look Kha District, Pathum Thani Province”. Pathumthani University Academic Journal, vol. 11, no. 2, Dec. 2019, pp. 142-5, https://so05.tci-thaijo.org/index.php/ptujournal/article/view/217219.