Thongtanunam ยุพาวรรณ, Sukrapat วรพนิต, Wankrathok ศุุภกร, and Santayakorn พัธนินทร์. 2021. “Effects of a Problem Based Learning Online Program for Nursing Students During COVID-19 Global Pandemic on Learning Outcomes According to Thai Qualifications Framework for Higher Education”. Nursing Journal of The Ministry of Public Health 31 (2):10-25. https://he02.tci-thaijo.org/index.php/tnaph/article/view/252562.