“EVALUASI FASILITAS TOILET DI GEDUNG BABEL IV UNIVERSITAS BANGKA BELITUNG: EVALUATION OF TOILET FACILITIES AT THE BABEL IV BUILDING BANGKA BELITUNG UNIVERSITY”. Fraction: Jurnal Teori dan Terapan Matematika 1, no. 1 (December 31, 2021): 10–17. Accessed April 20, 2026. https://update.fraction.ubb.ac.id/index.php/fraction/article/view/2.