Yusuf, F., Kurniawan, A. and Taufik, A. 2021. Effect of organizational culture and work environment on employee performance of PT. POS Indonesia (Persero) East Jakarta. Journal of Economics and Business Letters. 1, 4 (Dec. 2021), 55–61. DOI:https://doi.org/10.55942/jebl.v1i4.139.