Budiono, A. 2025. Manufacturing technology of Garuda Mulia concrete roof tiles/wave roof tiles and Mulia flat roof tiles using Padang cement at the port of Gresik. Edelweiss Applied Science and Technology. 9, 9 (Sep. 2025), 1663–1668. DOI:https://doi.org/10.55214/2576-8484.v9i9.10174.