Nolledo, Jose N.
Basic commercial laws of the Philippines with introductory features
National Book Store, 1967
 Buku Teks
Nolledo, Jose N.
Basic commercial laws of the Philippines. With introductory feature by Jose N. Nolledo.
National Book Store, 1967
 Buku Teks
Sudargo Gautama
The commercial laws of Indonesia
Citra Aditya Bakti, 1998
 Buku Teks
Zajac, Alfed
Basic principles and laws of mechanics
D.C. Heath, 1966
 Buku Teks SO
Curran, Joseph, Jr.
Introductory sociology a basic self-instructional guide
McGraw-Hill, 1977
 Buku Teks SO