Abdul Halip, Juliana. “Multifunctional Bookshelf Inspired by Petronas Twin Towers”. Research in Management of Technology and Business 3, no. 1 (June 26, 2022): 354–365. Accessed July 18, 2024. https://penerbit.uthm.edu.my/periodicals/index.php/rmtb/article/view/7236.