Ar-yuwat, Sireewat, Chanakan Sangkamkul, and Keerati Kitreerawutiwong. “The Effects of Problem-Based Learning on Critical Thinking Among Baccalaureate Nursing Students”. Songklanagarind Journal of Nursing 39, no. 2 (June 30, 2019): 87-97. Accessed August 12, 2020. https://he02.tci-thaijo.org/index.php/nur-psu/article/view/199773.