Amala, Z. .; Setiyawan, . A. S.; Sarli, P. W.; Soewondo, . P. .; Awfa, D. . WATER AND SANITATION SERVICE: A PRIORITY TO IMPROVE QUALITY OF SLUM AREAS IN PONTIANAK CITY BASED ON STAKEHOLDERS’ PREFERENCES. INTERNATIONAL JOURNAL OF GEOMATE 2023, 24, 85-92.