Marsiwi, Dwiati, Asis Riat Winanto, and Purwanto Purwanto. “Characteristics and Problematics of SMEs in Ponorogo”. Ekuilibrium : Jurnal Ilmiah Bidang Ilmu Ekonomi 15, no. 1 (March 3, 2020): 91–102. Accessed April 18, 2026. https://journal.umpo.ac.id/index.php/ekuilibrium/article/view/2086.