Treadwell, F.P., author
John Wiley & Sons, 1963
Buku Teks
Skoog, Douglas A., author
Philadelphia Saunders Collge , 1990
Buku Teks
Schenk, George H., author
Allyn and Bacon, 1981
Buku Teks
Dwi Ratna Puspitasari, author
Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Indonesia, 2006
UI - Skripsi (Membership)
Thomson, 2004
Buku Teks