Shoieb, M. A., Sum, C. W., Ismail, M. S., Gebretsadik, H. T., & Esther, O. (2020). Geological field characteristic of the Kroh Formation in the Upper Perak shales, western Peninsula Malaysia. KeAi Communications Co., Ltd.

Shoieb, Monera Adam, Chow Weng Sum, Mohd Suhaili Ismail, Haylay Tsegab Gebretsadik, and Owusu Esther. Geological Field Characteristic of the Kroh Formation in the Upper Perak Shales, Western Peninsula Malaysia. KeAi Communications Co., Ltd, 2020.

Shoieb, Monera Adam, et al. Geological Field Characteristic of the Kroh Formation in the Upper Perak Shales, Western Peninsula Malaysia. KeAi Communications Co., Ltd, 2020.