Aruna Goel; Goel, S. L. Distance education in the 21st century. Deep & Deep Publications.
シカゴスタイル引用形Aruna Goel; Goel, S L. Distance Education in the 21st Century. New Delhi: Deep & Deep Publications.
MLA引用形式Aruna Goel; Goel, S L. Distance Education in the 21st Century. Deep & Deep Publications.
警告: この引用は必ずしも正確ではありません.