พงษ์บริบูรณ์ อ. Being the Preceptor: The Challenge of Nurse’s Self-Efficacy. J Royal Thai Army Nurses [internet]. 2018 Apr. 30 [cited 2026 Aug. 29];19:22-30. available from: https://he01.tci-thaijo.org/index.php/JRTAN/article/view/134243