Porando Sitanggang, Edison, Zulkifli Rangkuti, dan Jamal Hanaffy. “THE EFFECT OF WORK COORDINATION AND EFFECTIVENESS ON EMPLOYEE PRODUCTIVITY AT PT. UNILEVER INDONESIA”. Jurnal Manajemen Bisnis Dan Organisasi 4, no. 2 (November 23, 2025): 435–440. Diakses April 21, 2026. https://jurnal-cahayapatriot.org/index.php/jmbo/article/view/535.