Agustin, F., and A. Umar. “Mitigation Analysis and Implementation of Health Protocols In Efforts to Overcome Covid-19 In the Work Environment of PT Aneka Gas Industri Tbk, Bekasi”. Jurnal Persada Husada Indonesia, Vol. 8, no. 29, Apr. 2021, pp. 41-53, doi:10.56014/jphi.v8i29.319.