Gaya APA
TOMBARI-HARPER, B., Fathuddin, . (2006).
English for Special Purpose: Etiquette (Cet. 6).
Jakarta:
Kesaint Blanc.
Gaya MLA
TOMBARI-HARPER, Barbara., Fathuddin, .
"English for Special Purpose: Etiquette".
Cet. 6
Jakarta:
Kesaint Blanc,
2006.
Text.