Srikhachin, P., D. Thapinta, H. Sethabouppha, and P. Thungjaroenkul. “Expressed Emotion Among Family Caregivers of Persons With Schizophrenia: A Causal Model Study”. Pacific Rim International Journal of Nursing Research, vol. 20, no. 4, Oct. 2016, pp. 337-49, https://he02.tci-thaijo.org/index.php/PRIJNR/article/view/56401.