แจ่มกระจ่าง ถ., พินทุสรศรี เ., ผจญ ส., and ยะชัยมา ฐ. “Managerial Skill of Commander As Perceived by Police Of F Ificers in Investigation Division Provincial Police Region 7”. Mahamakut Graduate School Journal, vol. 17, no. 1, Aug. 2019, pp. 185-93, https://so04.tci-thaijo.org/index.php/mgsj/article/view/212468.