Adriani Rangkuti, D. et al. 2022. The Influence of Organizational Culture, Internal Environment and Leadership Style on Employee Performance at PT. Rubber Hock Lie Sunggal. International Journal of Educational Research & Social Sciences . 3, 3 (Jun. 2022), 1111–1116. DOI:https://doi.org/10.51601/ijersc.v3i3.387.