Gaya APA
Wahjono, S, I. et al
(2020).
Studi kelayakan bisnis
.
Purwokerto:
Um purwokerto press.
Gaya MLA
Wahjono, Sentot, Imam. et al.
"Studi kelayakan bisnis".
Purwokerto:
Um purwokerto press,
2020.
Buku.