7 1 10 Sahat Simamora Translator mixed material Jakarta CV Rajawali 1983 Kiat Menuju Sukses Sahat Simamora Translator Soegeng Prijodarminto Primary Author mixed material 9794083208 Jakarta Pradnya Paramita 1993 Sahat Simamora Translator louis Irving Horowitz Primary Author mixed material Jakarta Bina Aksara 1985 Sahat Simamora Translator Guy Benveniste Primary Author mixed material 979421277 Jakarta 1997 Sahat Simamora Additional Author Oran R Young Primary Author mixed material Jakarta Bina Aksara 1984 Sahat Simamora Primary Author David Easten Primary Author mixed material Jakarta Bina Aksara 1984 Tom Bottomore Primary Author Sahat Simamora Additional Author mixed material Jakarta Bina Aksara