Analisis Kelayakan Usaha Produksi Stik Ubi Jalar Ungu: The Analysis of Production Business Feasibility of Purple Sweet Potato Sticks. JoFIT [Internet]. 30 Januari 2026 [dikutip 9 November 2026];3(1):22-39. Tersedia pada: https://publikasi.polije.ac.id/jofit/article/view/6852