kolkijkovin, varuna, Pattrayuttawat, N., Nukongmai, T., Passara, N., Phonglauhaphan, A., Angsupasakorn, K., & Boonchaivatanachot, S. (2020). Happiness and Associated Factors of First to Sixth - Year Medical Students at Faculty of Medicine Vajira Hospital. Vajira Medical Journal : Journal of Urban Medicine, 64(6), 397–410. https://doi.org/10.14456/vmj.2020.39