http://repository.uhamka.ac.id/4309/
Budiandru, Budiandru
http://repository.uhamka.ac.id/4309/1/2%20jurnal%20eti%20uinj%20budiandru%20feb.pdf
Budiandru, BudiandrudanSari Yuniarti, Sari (2020) Economic Turmoil in Islamic Banking Investment. Economic Turmoil in Islamic Banking Investment. pp. 1-29.