Witthayapipopsakul W, Wanwong Y, Islam Marshall A, Chotchoungchatchai S, Patcharanarumol W, Tangcharoensathien V. Effective Coverage and Its Application in the Thai Context. J Health Syst Res [internet]. 2022 Mar. 30 [cited 2025 Nov. 17];16(1):112-27. available from: https://he04.tci-thaijo.org/index.php/j_hsr/article/view/3484