Zainol, Rosilawati, Faros Fadzira Roslan, Nor Shahida Azali, Nur Aulia Rosni, and Lee Wei Chang. 2022. “TRIPLE HELIX MODEL IN HANDLING CHALLENGES TO THE INFORMAL ECONOMIC ACTIVITIES”. PLANNING MALAYSIA 20 (24). https://doi.org/10.21837/pm.v20i24.1217.