“…More specifically, it should be noted that a total number of eight studies included ownership structure as the factor that affects voluntary disclosure, environmental disclosure and CSR disclosure (Zaini et al, 2020;Chang et al, 2019;Ong et al, 2019;Alazzani et al, 2019;Mohamed Adnan et al, 2018;Ismail et al, 2018;Said et al, 2018;Sadou et al, 2017). The board of directors' characteristics were examined by nine studies (Jamil et al, 2020;Janang et al, 2020;San Ong et al, 2019;Alazzani et al, 2019;Ismail & Latiff, 2019;Mohamed Adnan et al, 2018;Abd Rahman & Ku Ismail, 2018;Said et al, 2018;Sadou et al, 2017). Financial performance was examined by five studies (Abdullah et al, 2020;Yusoff et al, 2018;Sadou et al, 2017;Wahab et al, 2017).…”