Urdiales Orellana, V. F., & León Vélez, M. V. (2013). Developing english vocabulary through the use of songs in students of fourth level of Basic Education at “Unidad Educativa Fiscomisional Don Bosco.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Urdiales Orellana, Vicente Fernando, و María Verónica León Vélez. Developing English Vocabulary Through the Use of Songs in Students of Fourth Level of Basic Education at “Unidad Educativa Fiscomisional Don Bosco. 2013.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Urdiales Orellana, Vicente Fernando, و María Verónica León Vélez. Developing English Vocabulary Through the Use of Songs in Students of Fourth Level of Basic Education at “Unidad Educativa Fiscomisional Don Bosco. 2013.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.