Chaichob, P. ., P. . Pothard, and S. . Khonwong. “Effectiveness of the Screening Model for Patients With Chronic Obstructive Pulmonary Disease, Den Chai District, Phrae Province”. Journal of Phrae Public Health for Development - วารสารสาธารณสุขแพร่เพื่อการพัฒนา, vol. 3, no. 2, Jan. 2024, pp. 109-25, https://thaidj.org/index.php/jpphd/article/view/15021.