Vinh university Department of Foreign languages. (2014). Supplementary material for B1 English intensive course student's book. Vinh.
استشهاد بنمط شيكاغوVinh university Department of Foreign languages. Supplementary Material for B1 English Intensive Course Student's Book. Vinh, 2014.
MLA استشهادVinh university Department of Foreign languages. Supplementary Material for B1 English Intensive Course Student's Book. Vinh, 2014.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.