6 1 50 Soeharsono Martoharsono Primary Author mixed material 979420627x Yogyakarta : Gadjah Mada Univ. Press,, 2012. 2012 Soeharsono Martoharsono Primary Author mixed material 9794206288 Yogyakarta : Gadjah Mada Univ. Press,, 2006.. 2006 Soeharsono Martoharsono Primary Author mixed material 9794200824 Yogyakarta U G M Press 1990 Soeharsono Martoharsono Primary Author mixed material 9794200824 Yogyakarta : Gajah Mada University Press, 1990 1990 Soeharsono Martoharsono Primary Author mixed material 979420000X Yogyakarta : Gajah Mada University Press, 1988 1988 Martoharsono, Soeharsono Additional Author Soeharsono Martoharsono Additional Author mixed material Yogyakarta : Gajdah Mada Univ. press, 1987 1987