DESWITA, DESWITA; IRWAN; WATHAN, M. H. EFFECTIVENESS OF IMPLEMENTING A TEACHER ABSENCE SYSTEM BASED ON GEOLOCATION USING THE FEATURE DRIVEN DEVELOPMENT (FDD) METHOD AT SMP NEGERI 2 RIAU SILIP. KHARISMA Tech, v. 20, n. 2, p. 95-105, 22 Nov. 2025.