Zainol, Rosilawati, Faros Fadzira Roslan, Nor Shahida Azali, Nur Aulia Rosni, and Lee Wei Chang. “TRIPLE HELIX MODEL IN HANDLING CHALLENGES TO THE INFORMAL ECONOMIC ACTIVITIES”. PLANNING MALAYSIA 20, no. 24 (December 10, 2022). Accessed May 11, 2024. https://www.planningmalaysia.org/index.php/pmj/article/view/1217.