Handayani, Titin Hera Widi, et al. “COST-EFFECTIVENESS ANALYSIS PROYEK CATERING SERVICE PADA MATA KULIAH PRAKTIK USAHA BOGA”. Prosiding Pendidikan Teknik Boga Busana, vol. 20, no. 1, Dec. 2025, https://jurnal.uny.ac.id/index.php/ptbb/article/view/93946.