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Simbolon S, Wahyuni SH, Friska M. Effect Of Combination Of Extracts Of Several Rhizomes On Mortality Of Armyworm (Spodoptera sp.) On Sweet Potato Plants (Ipomoea batatas L.). j.agri, j.agriculturescience [Internet]. 2024Nov.24 [cited 2025Dec.8];19(2):33-6. Available from: https://jurnal.faperta-unras.ac.id/index.php/jas/article/view/283