Mansor, R.; Hassan, H. N.; Abdullah, N.; Nik Yusuf, N. A. Keberkesanan Penggunaan I-Think Terhadap Pencapaian Dan Minat Murid Dalam Tajuk Sifat Bahan, Sains Tahun 4: Effectiveness of Using I-Think Towards Pupils’ Achievement and Interest in A Topic from Year 4 Science, Properties of Materials. JPSMM 2015, 5, 98-116.