Jawaed, N.- ul-A. et al. 2020. An In-Vitro Comparison and Analysis of Apical Microleakage of Thermafil, System B and Cold Lateral Compaction Obturation Techniques by using Linear Dye Penetration Measurement Method. Journal of Liaquat University of Medical & Health Sciences. 19, 02 (Jul. 2020), 133–138.