Anwar Hasan Abdullah Othman, Adam Abdullah, and Razali Haron. “ARE THE NEW CRYPTO-CURRENCIES QUALIFIED TO BE INCLUDED IN THE STOCK OF HIGH QUALITY LIQUID ASSETS? A CASE STUDY OF BITCOIN CURRENCY”. Al-Shajarah: Journal of the International Institute of Islamic Thought and Civilization (ISTAC), Oct. 2019, doi:10.31436/shajarah.v0i0.899.