Ghazali, Nor Hasnida Che MD, et al. “Development and Validation of an Inventory to Evaluate Teaching Strategies for Promoting Higher-Order Thinking Skills in the Teaching of Islamic Education”. Ta’dib: Jurnal Pendidikan Islam, vol. 22, no. 1, Dec. 2017, pp. 39-47, https://doi.org/10.19109/td.v22i1.1217.