Gaya APA
Tondodiningrat, J, T. (2013).
Enneagram in Pupperty .
Surabaya:
Originally Published by CTC Sanggar BIna Tama Foundation.
Gaya MLA
Tondodiningrat, John, Tondowidjojo.
"Enneagram in Pupperty".
Surabaya:
Originally Published by CTC Sanggar BIna Tama Foundation,
2013.
Buku.