Sukontrakoon, P., P. Pongrua, and T. Poonyathalang. “The Relationship Among Perception of Nursing Students in Readiness for Self-Directed Learning, Readiness to Group Work and Learning Achievement in the Maternal-Newborn Nursing and Midwifery Courses”. Nursing Research and Innovation Journal, vol. 25, no. 2, Sept. 2019, pp. 195-07, https://he02.tci-thaijo.org/index.php/RNJ/article/view/141636.