Gaya APA
Nasr, S, H., Muhibbuddin, M. (2022).
Problematika krisis spiritual manusia kontemporer .
Yogyakarta:
IRCiSoD.
Gaya MLA
Nasr, Seyyed, Hossein., Muhibbuddin, Muhammad.
"Problematika krisis spiritual manusia kontemporer".
Yogyakarta:
IRCiSoD,
2022.
Buku.