Sabri, S. N. U. (2019). An investigation on pattern of unstable "Beta-Gamma (βγ)" magnetic classification of sunspot in type II burst, type III burst and type IV burst on active region / Siti Nur Umairah Sabri.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Sabri, Siti Nur Umairah. An Investigation on Pattern of Unstable "Beta-Gamma (βγ)" Magnetic Classification of Sunspot in Type II Burst, Type III Burst and Type IV Burst on Active Region / Siti Nur Umairah Sabri. 2019.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Sabri, Siti Nur Umairah. An Investigation on Pattern of Unstable "Beta-Gamma (βγ)" Magnetic Classification of Sunspot in Type II Burst, Type III Burst and Type IV Burst on Active Region / Siti Nur Umairah Sabri. 2019.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.