1. The Graduate School; Chiang Mai University; Muang Chiang Mai Thailand
2. Faculty of Nursing, Psychiatric Nursing; Chiang Mai University; Muang Chiang Mai Thailand
3. Department of Psychosocial and Community Health; School of Nursing; University of Washington; Seattle WA USA
4. Faculty of Nursing, Nursing Administration; Chiang Mai University; Muang Chiang Mai Thailand