Abdullah Al Parvez, Pranay Dutta, Md. Imranul Shahid, MD Abdullah Akib. ANALYSIS OF THE IMPERFECTION INDEX (IPI) VALUE OF CARDED YARN PRODUCED BY USING DIFFERENT DIAMETER SPACERS ON THE RING FRAME SPINNING MACHINE. IEJRD - International Multidisciplinary Journal [Internet]. 2021 Apr. 6 [cited 2025 Oct. 29];6(ICMRD21):7. Available from: http://iejrd.com/index.php/ /article/view/1751