Frediyansyah, M. T., Sukamta, S., Sulistyowati, R. A. ., Umam, M. ., & Lie , H. A. . (2024). The Influence Of Adding Superplasticizer With Time Interval And Variation Of Water Reduction On The Early Strength And Workability Of Concrete. Eduvest - Journal of Universal Studies, 4(7), 5577–5591. https://doi.org/10.59188/eduvest.v4i7.1593