Yardley, Bruce W.D.
John Wiley & Sons, 1989
Buku Teks
Yardley, Bruce W.D.
Longman Scientific Technical, 1990
Buku Teks
Rivo Adikusuma
Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Indonesia, 2019
UI - Skripsi Membership
Johannsen, Albert
University of Chicago Press, 1937
Buku Teks
Johannsen, Albert
University of Chicago Press, 1938
Buku Teks