1. Adam, M. F. (2017). Bitcoin: Shariah Compliant? Amanah Finance Consultancy, 1–54. Retrieved from http://darulfiqh.com/wp-content/uploads/2017/08/Research-Paper-on-Bitcoin-Mufti-Faraz-Adam.pdf
2. Ahmad, A. U. F., & Hassan, M. K. (2006). The Time Value of Money Concept in Islamic Finance. American Journal of Islamic Social Sciences, 23(1), 66.
3. Albahouth, A. S. A. (2018). Crypto-Currency: Concept, Typology and Economic Impacts. Scientific Journal of Economics and Trade, (1) (in Arabic).
4. Ali, R., Barrdear, J., Clews, R. M., & Southgate, J. (2014). The Economics of Digital Currencies. Bank of England. Quarterly Bulletin, Q3.
5. Almarzoqi, R. M., Mansour, W., & Krichen, N. (2018). Islamic Macroeconomics: A Model for Efficient Government, Stability and Full Employment (1st ed.). Routledge.