Hasan, Md Kamrul, et al. “Space Closure Rate in Mandibular Canine Retraction by Elastomeric Power Chain: A Clinical Trial”. Chattagram Maa-O-Shishu Hospital Medical College Journal, vol. 20, no. 2, Nov. 2021, pp. 28-31, doi:10.3329/cmoshmcj.v20i2.56469.