Gaya APA
Spiritual Teaching. (2010).
Yogyakarta:
Bintang Pustaka Abadi.
Gaya Chicago
Spiritual Teaching.
2010.
Yogyakarta:
Bintang Pustaka Abadi,
2010.
Text.
Gaya MLA
Spiritual Teaching.
2010.
Yogyakarta:
Bintang Pustaka Abadi,
2010.
Text.
Gaya Turabian
Spiritual Teaching.
Yogyakarta:
Bintang Pustaka Abadi,
2010.
Print.