Khan TS, Jehangir M, Niwaz A, Khan MM, Shahzad M, Khan MS. Statistical Approach: Understanding the Effects of Preview, Question, Read, Reflect, Recite, Review (PQ4R) on Academic Achievement of Students in English. The Nucleus [Internet]. 2018 Oct. 11 [cited 2024 Nov. 25];55(2):61-5. Available from: http://202.83.167.189/index.php/Nucleus/article/view/246