Jabeen M, Tariq K, Rehman A, Aslam N, Zafar AM, Hussain SU. Evaluation of Improvised and Eco-Friendly Natural pH-Paper Indicators. FCS [Internet]. 2022Dec.31 [cited 2023Mar.20];3(2):22-31. Available from: http://fcs.wum.edu.pk/index.php/ojs/article/view/58