Authors: Navreet Kaur, Amanpreet Kaur
Authors: Narendra Chamoli, Himanshu Suyal, Amit Panwar, Ravinder Chauhan
Authors: V. Goutham, B. Mounika, P. Shiva Datta
Authors: Satbir Kaur, Ishpreet Singh
Authors: Noor Khaled
Authors: Siddu P. Algur, Leena I. Sakri
Authors: Chaitrali Salunke, S. A.Takale
Authors: Salma Mouatassim, Mustapha Ahlaqqach, Jamal Benhra, My Ali El Oualidi
Authors: Mohamed Sayed Ali Osman, Gamal Eldin Abd El_Hakim M., H. A. Khalifa