Gaya APA

AL, A, J, E. (2021). CRUCIAL EVENTS: WHY ARE CATASTROPHES NEVER EXPECTED? . : World Scientific Publishing Co.

Gaya MLA

AL, AWREJCEWICZ, JAN, ET. "CRUCIAL EVENTS: WHY ARE CATASTROPHES NEVER EXPECTED?". : World Scientific Publishing Co, 2021. S2-Pendidikan Bahasa Arab.