Abu Hassan Adam. (1992). Menghala wawasan 2020 (2nd ed.). Kuala Lumpur: Arena Ilmu.
Chicago Style CitationAbu Hassan Adam. Menghala Wawasan 2020. 2nd ed. Kuala Lumpur: Arena Ilmu, 1992.
MLA CitationAbu Hassan Adam. Menghala Wawasan 2020. 2nd ed. Kuala Lumpur: Arena Ilmu, 1992.
Warning: These citations may not always be 100% accurate.