Thi Thu Hang Do, Ngoc Oanh Nguyen, Quang Dieu Tran, Thu Ha Le, and Thi Mai Lien Pham, “Internet Content Analysis Techniques: Application in Social Media Management: Content Analysis Techniques from Text: Application in Social Media Management”, GJSFR, vol. 18, no. I2, pp. 39–40, Jul. 2018.