Weed Diversity in Sweet Corn (Zea mays Saccharata) Area with Different Observation Time in Tobelo Tengah District, North Halmahera. J. Agro. & Fish [Internet]. 2021 Dec. 3 [cited 2025 Oct. 9];14(2):642-8. Available from: https://jurnal.ummu.ac.id/index.php/agrikan/article/view/894