Marinah Aminuddin, F.; Shafiqah Radzuan, A.; Zainuddin, A.; Suraya Shaharuddin, U.; Onn, M.; Mohamed, S.; Balqis Ismail, H.; Hamizah Mohd Nordin, A.; Fahmi Mustapa, R. Development of a Mathematics Learning Tool Using Inventive Principle. IJET 2018, 7 (2.14), 165-170. https://doi.org/10.14419/ijet.v7i2.14.12818.