“Analisis Break Even Point Usaha Bengi 2 Musik Keyboard Di Kabupaten Aceh Tengah”. Gajah Putih Journal of Economics Review 7, no. 1 (October 7, 2025): 61–70. Accessed June 10, 2026. https://www.jurnal.ugp.ac.id/index.php/gpjer/article/view/1561.