Dr. Thakur Pankaj

Department of Mathematics,
Indus International University,
Bathu, Una, Himachal Pradesh,
174301 India.

Professor Abdelnaser Omran,

Project Management Department,
Universiti Sains Malaysia,
Malaysia.

Dr. Khani Farzad,

Department of Mathematics,
Razi University,
Kermanshah,
Iran.

Dr. (Mrs.) S. Anuradha Jabasingh,

Department of Chemical Engineering,
Sathyabama University,
India.

Dr. Harvinder Sidhu

School of Physical, Environmental and Mathematical Sciences,
University of New South Wales,
Canberra. ACT 2600,
Australia.