by Ir. L. Widarto & FX. Sudarto C. Ph $5.00
by Michael Collins & Matthew A. Price $48.00
by $4.00
by N. Edy Soetanto, BE. $5.00
by Briege McKenna, O.S.C. & Henry Libersat $6.00
by Iskandar Kanna, A.Md $7.00