by Ackley, Gardner $13.00
by R.M. Sumopratomo $6.00
by Hendra Sutardhio $9.00
by Aziz Alimul $7.00
by Nursalam $11.00
by Iin Inayah $11.00
by Robert L. Heilbroner $12.00
by Mulyadi Subri $9.00
by M. Ghufron H. Kordi K $7.00
by Drs. Djalinus Syah., dkk $13.00
by Harahap, Rustam Effendi $6.00
by Dr. Al. Purwa Hadiwardoyo, MSF. $4.00