Kevin Ghozali, Agung Nur Wahid Btr, and Rhini Wulan Dary. 2026. “Comparison of Reinforcement Waste of Columns and Beams in the Ditsamapta Building North Sumatra Regional Police Using Conventional Method and COP”. Jurnal Inotera 11 (1). Indonesia, Jakarta, 129-38. https://doi.org/10.31572/inotera.Vol11.Iss1.2026.ID549.