This study attempts to propose and examine a theoretical conceptual model that investigates the causal effects of hotel frontline employees’ perceptions of human resource (HR) practices, supervisor support, and coworker support, influencing on organizational citizenship behaviour (OCB) towards job performance in the context of four-star hotels in Phuket, Thailand. The mediating effects of OCB are also highlighted. HR practices in this study are in a form of high-performance work practices (HPWPs) consisting of selective staffing, rewards, training, ...