by Ir. Budi Samadi & Ir. Bambang Cahyono $7.00
by Suharso, A.S.P $9.00
by Yernelis Sukma, M.S., & Yakup $7.00
by Dr. Med. Udayana Gendo $16.00
by Al. Wahjasudibja, Pr. $6.00
by H. Rahmat Rukmana $6.00