ANALISIS KELAYAKAN USAHATANI JAGUNG (Zea Mays L.) DI PT. TJANDI SEWU BARU BLITAR. viabel [Internet]. 2023 May 25 [cited 2026 Feb. 2];17(1):1-8. Available from: https://ejournal.unisbablitar.ac.id/index.php/viabel/article/view/2411