Gaya APA
Books, T., Purwanto, J. (1994).
Ushul fiqih/Muhammad Abu Zahrah; penerjemah: Saefullah Ma'shum .
Bandung:
Pustaka Firdaus.
Gaya MLA
Books, Tim., Purwanto, JOKO.
"Ushul fiqih/Muhammad Abu Zahrah; penerjemah: Saefullah Ma'shum".
Bandung:
Pustaka Firdaus,
1994.
.