The harper encyclopedia of science: volume II, E through L
editor, James R. Newman
Harper & Row, 1963
 Buku Referensi
The harper encyclopedia of science: volume III, M through R
editor, James R. Newman
Harper & Row, 1963
 Buku Referensi
The harper encyclopedia of science: volume IV, S through Z, index
editor, James R. Newman
Harper & Row, 1963
 Buku Referensi
Van Nostrand's scientific encyclopedia; Volume I
editor, Douglas M. Considine; managing editor, Glenn D. Considine
Van Nostrand Reinhold, 1989
 Buku Referensi
The, Liang Gie
Ensiklopedi ilmu-ilmu (encyclopedia of the sciences)
PUBIB, 1997
 Buku Referensi