Abubakar Magaji Jibrillah, Lam Kuok Choy, Mokhtar Jaafar.  (2018).  Climate change manifestations and impacts in the Sokoto Close-Settled zone, Northwestern Nigeria.  - Akademika.  . 

Anas Alnaimat, Lam Kuok Choy, Mokhtar Jaafar.  (2017).  An Assessment of Current Practices on Landslides Risk Management: A Case of Kuala Lumpur Territory.  - Geografia Online: Malaysian Journal of Society and Space.  1-12.