Enneagram-MBTI Theories Fudjack/Dinkelaker Theory [1] [2] [3] [4] [5] [6]



Geldart Theory [1] [2]



Gabbard Theory [1]



Wyman Theory [1] [2]



Flautt, Fudjack/Dinkelaker, Riso, Geldart, Gabbard [1]

Fergus Duniho - A brief discussion on the relationship between the Enneagram and MBTI (Duniho is creator of the DDLI) [ 1 ]