Gaya APA
Seto, M. (2011).
Positive Thinking VS Positive Attitude : 42 Pikiran & Sikap Super Orang Sukses (1).
YOGYAKARTA:
Locus.
Gaya MLA
Seto, Mario.
"Positive Thinking VS Positive Attitude : 42 Pikiran & Sikap Super Orang Sukses".
1
YOGYAKARTA:
Locus,
2011.
Text.