Anna Ayu Herawati, Arsyadani Mishbahuddin, Mellyta Uliyadari, and Adif Jawadi Saputra, “The Effectiveness of Information Services Using Problem Based Learning Approach to Reduce Academic Procrastination of Counseling Students”, IJORER  Int. J. Recent Educ. Res., vol. 2, no. 2, pp. 138-146, Mar. 2021.