APA (7th ed.) Citation

Abu Hassan Adam. (1991). Menghala Wawasan 2020 (Ed. 2.). Arena Ilmu.

Chicago Style (17th ed.) Citation

Abu Hassan Adam. Menghala Wawasan 2020. Ed. 2. Kuala Lumpur: Arena Ilmu, 1991.

MLA (8th ed.) Citation

Abu Hassan Adam. Menghala Wawasan 2020. Ed. 2. Arena Ilmu, 1991.

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