Gaya APA
Sumitro. (2009).
Life Management Training (Cet. 1).
Yogyakarta:
Media Pressindo.
Gaya Chicago
Sumitro.
Life Management Training.
Cet. 1
Yogyakarta:
Media Pressindo,
2009.
Text.
Gaya MLA
Sumitro.
Life Management Training.
Cet. 1
Yogyakarta:
Media Pressindo,
2009.
Text.
Gaya Turabian
Sumitro.
Life Management Training.
Cet. 1
Yogyakarta:
Media Pressindo,
2009.
Print.