PY
https://www.studeersnel.nl/nl/document/penta-college-csg-jacob-liesveldt/nederlands/psychosophy-functions/52592613
https://docs.google.com/document/u/0/d/1T9GNyp2Y-6EbqA_1xYoUbplYBy3dCzI-I6MFiyuRRxk/mobilebasic
Classic Jungian
https://drive.google.com/file/d/1HDs0f7VV_ttnWaxUTPGwyhzckzLyqpCJ/view
Socionics
short guide -https://drive.google.com/file/d/1ANVUEM6M2ooz-FvqNYzAvHc3K43hI9Dp/view
https://drive.google.com/file/d/1ANVUEM6M2ooz-FvqNYzAvHc3K43hI9Dp/view
https://www.the16types.info/vbulletin/content.php/193-Aspects-in-the-Valued-Functions-Dmitry-Golihov
https://www.the16types.info/vbulletin/showthread.php/55306-Type-descriptions-by-Victor-L-Talanov