Smart, W.M.
Cambridge University, 1962
Buku Teks
Agya Sewara Alam, author
Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Indonesia, 2022
UI - Tesis Membership
Huffer, Charles M.
Holt Rinehart & Winston, 1967
Buku Teks
Hodge, Paul W.
McGraw-Hill, 1974
Buku Teks
Baker, Robert H., author
D. Van Nostrand, 1964
Buku Teks