by $13.00
by H. Rahmat Rukmana & Hj. Yuyun Yuniarsih, SP., MBA., MM $6.00
by Th. Endang Purwoastuti $5.00
by J. Donald Walters $5.00
by Archie J. Bahm $7.00
by H. R. Kartadisastra $5.00