Patten, Thomas H., Jr.
Wiley-Interscience, 1971
Buku Teks
Asian Committee on Science and Technology, 2000
Majalah, Jurnal, Buletin
Bank Bumi Daya
Bank Bumi Daya , 1982
Buku Teks
The International Journal of Health Education, 1974
Buku Teks
Bartholomew, David J., author
John Wiley & Sons, 1979
Buku Teks