लेखक: Abdul K. Arof

Tan Winie is Associate Professor in the School of Physics and Material Science at Universiti Teknologi MARA, Malaysia. She is an Associate Fellow of the Malaysian Scientific Association. Abdul Kariem Arof is a retired Professor in the Department of Physics at University of Malaya, Malaysia. Sabu Thomas is Professor, School of Chemical Sciences and Vice Chancellor, Mahatma Gandhi University, India.