Badi, J.A. 2018. Efficient Leadership: A Systemic Model of Prophetic Thinking (Kepimpinan yang Berkesan: Model Sistemik dari Pemikir). Journal of Islam in Asia (E-ISSN 2289-8077). 14, 3 (Jan. 2018), 249–270. DOI:https://doi.org/10.31436/jia.v14i3.632.