Syarif M, Tjaronge MW. A Comparison of Organic Cement Made from Recycled Waste Material and Portland Cement. Eng. Technol. Appl. Sci. Res. [Internet]. 2021 Aug. 21 [cited 2025 Apr. 6];11(4):7442-5. Available from: https://mail.etasr.com/index.php/ETASR/article/view/4323