by Nunung Marlina Djarijah & Ir. Abbas Siregar Djarijah $6.00
by Ir. Budi Samadi & Ir. Bambang Cahyono $7.00
by L. Prasetya, Pr. $4.00
by Ir. Heinz Frick $6.00
by Mitra Agro Melodi $9.00
by J. Donald Walters $5.00
by Prof. Drs. H.A.W. Widjaja $6.00
by T. Sarpian $7.00
by Fuad bin Sayyid Abdurrahman ar-Rifa'i $5.00
by Dr. Said Kelana & Dr. Chandra W $12.00
by Muh. Al Mighwar S.Ag., M.Ag. $6.00
by A. Amarah, dkk $6.00