“ANALYSIS OF PALM OIL FARMING AND PALM SUGAR ADDED VALUE AS AS HERBAL MEDICINE (CASE: KARO REGENCY, NORTH SUMATRA PROVINCE)”, Journal of Pharmaceutical Negative Results, pp. 4159–4168, Dec. 2022, Accessed: Jul. 01, 2026. [Online]. Available: https://www.pnrjournal.com/index.php/home/article/view/5297