Hajja, Mowaffaq; Walker, Peter (2001), "Equifacial tetrahedra", International Journal of Mathematical Education in Science and Technology, 32 (4): 501–508, doi:10.1080/00207390110038231, MR1847966, S2CID218495301.
Petitjean, Michel (2015), "The most chiral disphenoid"(PDF), MATCH Communications in Mathematical and in Computer Chemistry, 73 (2): 375–384, MR3242747.
Hajja, Mowaffaq; Walker, Peter (2001), "Equifacial tetrahedra", International Journal of Mathematical Education in Science and Technology, 32 (4): 501–508, doi:10.1080/00207390110038231, MR1847966, S2CID218495301.
Petitjean, Michel (2015), "The most chiral disphenoid"(PDF), MATCH Communications in Mathematical and in Computer Chemistry, 73 (2): 375–384, MR3242747.
Hajja, Mowaffaq; Walker, Peter (2001), "Equifacial tetrahedra", International Journal of Mathematical Education in Science and Technology, 32 (4): 501–508, doi:10.1080/00207390110038231, MR1847966, S2CID218495301.