Castillo Calvo, D. A. (2021). Changes in singing classes in the Basic Stage of Music in Turrialba, based on virtualization due to the COVID-19 pandemic in the first semester of 2020.
استشهاد بنمط شيكاغوCastillo Calvo, Diego Armando. Changes in Singing Classes in the Basic Stage of Music in Turrialba, Based On Virtualization Due to the COVID-19 Pandemic in the First Semester of 2020. 2021.
MLA استشهادCastillo Calvo, Diego Armando. Changes in Singing Classes in the Basic Stage of Music in Turrialba, Based On Virtualization Due to the COVID-19 Pandemic in the First Semester of 2020. 2021.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.