APA (7th ed.) Citation

Ali, A., Islamiah, D., & Zulkifli, Z. (2018). The effectiveness of problem – based learning methods in improving high-order thinking skills.

Chicago Style (17th ed.) Citation

Ali, Azita, Doria Islamiah, and Zuriawahida Zulkifli. The Effectiveness of Problem – Based Learning Methods In improving High-order Thinking Skills. 2018.

MLA (9th ed.) Citation

Ali, Azita, et al. The Effectiveness of Problem – Based Learning Methods In improving High-order Thinking Skills. 2018.