SARAGIH, Rafael Faiven; BR PELAWI, Kesya Emya Regina; SIHOMBING, Steven Rionaldo; PURBA, Alvando Fransiskus; NASUTION, Muhammad Arif. 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, [S. l.], v. 9, n. 1, p. 1–6, 2026. DOI: 10.34012/agriprimatech.v9i1.8313. Disponível em: https://jurnal.unprimdn.ac.id/index.php/Agriprimatech/article/view/8313. Acesso em: 5 jul. 2026.