“…Employees exhibiting OCB are in high demand and are often sought by organizations (Kazemipour, Mohamad Amin, & Pourseidi, 2012; O'Grady, 2018; Ukeje, Lasisi, Eluwole, Titov, & Ozturen, 2020). Also, OCB relationship with several variables, for instance, OCB with the organizational outcome (Swaminathan & Jawahar, 2013), work overload, and employee performance (Kissi, Asare, Agyekum, Yamoah Agyemang, & Labaran, 2019), have called for several more studies. Employee commitment to the environment (Luu, 2018; Luu, 2019; Pham et al, 2019) builds employees' behavior toward the environment that can be utilized to implement sustainable environment (Tang, Chen, Jiang, Paille, & Jia, 2018).…”