Nguyen Duc Luong, Nguyen Thi Hue, Nguyen Huy Tien, Nguyen Van Duy and Hoang Xuan Hoa 2025. Assessing energy consumption and operational carbon emission: A case study of office building in Hanoi . JOURNAL OF MATERIALS & CONSTRUCTION. 15, 02 (Nov. 2025), Page 61 – Page 64. DOI:https://doi.org/10.54772/jomc.v15i02.1190.