Frilla Gunariah, Gunarto Wardjono, Kus Indiyah, Patriandari, and Sari Mujiani. “UMKM GOING UP A LEVEL: Simple Financial Management, Cost of Goods Manufactured (COGM), and Profit Strategy”. Britain International of Humanities and Social Sciences (BIoHS) Journal, Vol. 8, no. 2, June 2026, p. 208a-9, https://biarjournal.com/index.php/biohs/article/view/1565.