APA (7th ed.) Citation

Abu Hassan Adam. (1992). Menghala wawasan 2020 (2nd ed.). Arena Ilmu.

Chicago Style (17th ed.) Citation

Abu Hassan Adam. Menghala Wawasan 2020. 2nd ed. Kuala Lumpur: Arena Ilmu, 1992.

MLA (9th ed.) Citation

Abu Hassan Adam. Menghala Wawasan 2020. 2nd ed. Arena Ilmu, 1992.

Warning: These citations may not always be 100% accurate.