Hussain, Azhar, Mujahid Abbas, Jamshaid Ahmad, and Abdullah Eqal Al-Mazrooei. 2019. “Best Proximity Point Results for Quasi Contractions of Perov Type in Non-Normal Cone Metric Space”. Communications in Mathematics and Applications 10 (2):281-93. https://doi.org/10.26713/cma.v10i2.1079.