Joyce และ Paul. (2018) The Effectiveness of Online and Paper-Based Formative Assessment in the Learning of English as a Second language. <i>PASAA : a journal of language teaching and learning</i>, <i>55</i>, 126-146.Joyce และ Paul. "The Effectiveness of Online and Paper-Based Formative Assessment in the Learning of English as a Second language". PASAA : a journal of language teaching and learning 55 (2018):126-146.Joyce และ Paul. The Effectiveness of Online and Paper-Based Formative Assessment in the Learning of English as a Second language. สถาบันภาษา จุฬาลงกรณ์มหาวิทยาลัย:ม.ป.ท. 2018.