Singweratham, Noppcha, Roongruthai Mualprasitporn, Krisada Sawaengdee, Parinya Jitaram, and Woranoot Tassabutr. 2018. “Determining Unit Costs Per Student and Break-Even Point at Nursing College of Praboromarajchanok Institute, Thailand”. Journal of Health Science of Thailand 27 (5):936-47. https://thaidj.org/index.php/JHS/article/view/5091.