Saragih RF, Br Pelawi KER, Sihombing SR, Purba AF, Nasution MA. THE EFFECTS OF MORNING BRIEFINGS, WORK MOTIVATION, AND FOREMAN LEADERSHIP ON THE WORK PRODUCTIVITY OF PALM OIL (Elaeis guineensis Jacq) HARVESTERS AT PTPN IV’S KWALA SAWIT PLANTATION IN LANGKAT REGENCY. Agriprimatech [Internet]. 2026 Apr. 30 [cited 2026 Jul. 5];9(1):1-6. Available from: https://jurnal.unprimdn.ac.id/index.php/Agriprimatech/article/view/8313