Gaya APA
BBA, C, V, T. (2004).
EFFECTIVE COMMUNICATION DO YOU UNDERSTAND WHAT I MEAN? .
Jakarta:
BOOK OF SELF IMPOVEMENT SERIAL.
Gaya MLA
BBA, CHRISTINA, VALOLA, TANASIA,.
"EFFECTIVE COMMUNICATION DO YOU UNDERSTAND WHAT I MEAN?".
Jakarta:
BOOK OF SELF IMPOVEMENT SERIAL,
2004.
Text.