4 1 50 perilaku-struktur-proses / James L. Gibson, et.al.; alih bahasa, Savitri Soekrisno dan Agus Darma Gibson, James L. Additional Author Soekrisno, Savitri Additional Author Dharma, Agus. Additional Author mixed material Jakarta Erlangga 1996 menciptakan dan mempertahankan kinerja unggul / Michael E. Porter; alih bahasa, Agus Dharma; editor, Ivonne Pongoh Porter, Michael E. Additional Author Dharma, Agus Additional Author Pongoh, Ivonne. Additional Author mixed material Jakarta Erlangga 1993 E. Jerome McCarthy, William D. Perreault, JR.; penerjemah, Agus Dharma; editor, Yati Sumiharti, [dkk.] McCarthy, E. Jerome Additional Author Sumiharti, Yati. Additional Author Dharma, Agus Additional Author Perreault, William D. Additional Author mixed material Jakarta Erlangga 1993 teknik dan konsep modern / Gary Dessler; penerjemah, Agus Dharma Dharma, Agus. Additional Author Dessler, Gary Additional Author mixed material Jakarta Erlangga 1997