temel açıklamalar

• https://docs.google.com/document/d/1toA13J4g835KJui7q25OxnQJpCgGPBzOAHpCP6SBQJ8/edit
• https://istj-hedonist.tumblr.com/post/614382511216377856/i-know-claudio-naranjo-is-not-the-most-trustworthy
• http://theenneagram.blogspot.com/
• https://oceanmoonshine9.wordpress.com/
• https://theenneagraminbusiness.com/theory/enneagram-theory-psychological-defense-mechanisms-and-the-enneagram/

üçlü tip (tritype)

• https://www.personalitycafe.com/threads/the-27-tritype-archetype-descriptions.73452/page-1
• http://davesenneagram.com/type-interpretation/the-ego-types-in-brief-oscar-ichazo