Nasrulloh, M., and A. Faozan. “Existence of Cryptocurrency As A Tool Of Exchange and Investment In The Perspective of The Fatwa of The Indonesian Ulama Assembly”. INTERNATIONAL CONFERENCE OF HUMANITIES AND SOCIAL SCIENCE (ICHSS), Feb. 2022, pp. 676-84, https://programdoktorpbiuns.org/index.php/proceedings/article/view/89.