PURBA, J., W. SUTTHARANGSEE, and A. CHAOWALIT. “Effectiveness of a Coaching Program for Family Caregivers of Persons With Schizophrenia: A Randomized Controlled Trial”. Walailak Journal of Science and Technology (WJST), vol. 14, no. 1, May 2016, pp. 11-24, https://wjst.wu.ac.th/index.php/wjst/article/view/2091.