Mundrey, J.S.
Tata McGraw-Hill, 2000
Buku Teks
Bonnett, Clifford F.
Imperial College Press, 1996
Buku Teks
by Economic and Socila Commission for Asia and the Pacific United Nations
United Nations, 1986
Buku Teks
Faiz Budiman Pratiknyo
Fakultas Ilmu Pengetahuan dan Budaya Universitas Indonesia, 2021
UI - Tugas Akhir
Searles, William H.
John Wiley & Sons, 1949
Buku Referensi