Gaya APA
Tafal,Zarfiel. (1999).
Program pelatihan/Zarfiel Tafal;Yahya Ma'shum (Ed.1).
Jakarta:
PKBI.
Gaya Chicago
Tafal,Zarfiel.
Program pelatihan/Zarfiel Tafal;Yahya Ma'shum.
Ed.1
Jakarta:
PKBI,
1999.
.
Gaya MLA
Tafal,Zarfiel.
Program pelatihan/Zarfiel Tafal;Yahya Ma'shum.
Ed.1
Jakarta:
PKBI,
1999.
.
Gaya Turabian
Tafal,Zarfiel.
Program pelatihan/Zarfiel Tafal;Yahya Ma'shum.
Ed.1
Jakarta:
PKBI,
1999.
.