แก้วศรี ป. SELF-DEVELOPMENT ACCORDING TO THE FOUR BHÃVANÃS OF THE VAJIRA ELDERLY CLUB FACULTY OF MEDICINE VAJIRA HOSPITAL, NAVAMINDRADHIRAJ UNIVERSITY. JMLC [internet]. 2023 Jun. 30 [cited 2025 May 30];3(1):1-14. available from: https://so08.tci-thaijo.org/index.php/JMLC/article/view/658