Sabirin, A. (2010). A 3-year observation of the ionospheric critical frequency over Malaysia. Universiti Malaysia Pahang (UMP).
استشهاد بنمط شيكاغوSabirin, Abdullah. A 3-year Observation of the Ionospheric Critical Frequency Over Malaysia. Universiti Malaysia Pahang (UMP), 2010.
MLA استشهادSabirin, Abdullah. A 3-year Observation of the Ionospheric Critical Frequency Over Malaysia. Universiti Malaysia Pahang (UMP), 2010.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.