Firmansyah, Riza, Ratih Dwinie Palupi, Slamet Kafrawi, Nurdian Susilowati, and Arbina Peni Susanti. “Penentuan Biaya Pendidikan Siswa SD Labschool UNNES Melalui Activity Based Costing”. JMBI UNSRAT (Jurnal Ilmiah Manajemen Bisnis dan Inovasi Universitas Sam Ratulangi). 9, no. 2 (August 15, 2022). Accessed December 27, 2025. https://ejournal.unsrat.ac.id/v3/index.php/jmbi/article/view/39570.