The Production of Botanical Pesticides from Cigarette Butts: A Study of the Tunas Harapan Farmers Group at KM 20, North Balikpapan. SEPAKAT [Internet]. 2025 Dec. 30 [cited 2026 Nov. 2];4(1):pages 43-48. Available from: https://journal.itk.ac.id/index.php/sepakat/article/view/8481672