Aksah, Hasnizan, Adi Irfan Che Ani, Suhana Johar, and Siti Hamidah Husain. 2023. “Evaluating the Content Validity: Development of An Instrument for Measuring Functional Building Performance”. International Journal of Global Optimization and Its Application 2 (1):12-19. https://doi.org/10.56225/ijgoia.v2i1.161.