ni

• https://functionaxes.tumblr.com/post/670432646457917441/the-best-explanation-of-ni-ive-ever-given-up-to
• https://ichijikanme.tumblr.com/archive/tagged/ni

fe

• https://hfc2x.tumblr.com/post/179580520850/how-can-you-still-confuse-fe-as-the-group
• https://cognitivetype.com/fe-behaviorism-mythology/

te vs. ti

• https://www.idrlabs.com/articles/2013/04/why-te-is-inductive-and-ti-is-deductive/amp/