Sibi P.A. (2009). Availability and utilization of audio visual aids by teachers for biological teaching in secondary schools of Ernakulam district.
استشهاد بنمط شيكاغوSibi P.A. Availability and Utilization of Audio Visual Aids by Teachers for Biological Teaching in Secondary Schools of Ernakulam District. 2009.
MLA استشهادSibi P.A. Availability and Utilization of Audio Visual Aids by Teachers for Biological Teaching in Secondary Schools of Ernakulam District. 2009.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.