Number 20

Authors: Eman Shehab , Abdelalim K. Farag , Arabi Keshk

Authors: Indrastanti R. Widiasari , Dian Widiyanto Chandra

Authors: Kamaljeet Kaur , Parminder Singh

Authors: B. Kiranmai , P. Rajesh Kumar

Authors: Chaker El Amrani

Authors: Rajani B. Patil , Dhanashree Kulkarni

Authors: Bhushan S. Thakare , Dhanashree Shirodkar , Naghma Parween , Shama Parween

Authors: Vinayak Gajanan Kottawar , A.m.rajurkar