Daycare Recommendation System Using Fuzzy Logic Method and Haversine Formula (Case Study : Medan City). Data Science: J. of Computing and Appl. Informatics [Internet]. 2024 Jan. 31 [cited 2026 Feb. 4];8(1):1-13. Available from: https://idjpcr.usu.ac.id/JoCAI/article/view/14354