Mohamad, M. A. H., Yahya, M. S., Janon, M. N., Ngadimon, K., Ismail, S., Kadis, G., Abd Aziz, A. R., & Yap, J. (2026). DESIGN AND DEVELOPMENT OF PORTABLE 3-IN-1 COLLECTION TROLLEY. INTERNATIONAL JOURNAL OF INNOVATION AND INDUSTRIAL REVOLUTION (IJIREV), 8(25), 48–64. https://doi.org/10.35631/IJIREV.825004