About the Authors
- Ruzelan Khalid
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Affiliation School of Quantitative Sciences, Universiti Utara Malaysia, Sintok, Kedah
- Mohd Kamal M. Nawawi
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* E-mail: mdkamal@uum.edu.my
Affiliation School of Quantitative Sciences, Universiti Utara Malaysia, Sintok, Kedah
- Luthful A. Kawsar
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Affiliations School of Distance Education, Universiti Sains Malaysia, Penang, Malaysia, Department of Statistics, School of Physical Sciences, Shahjalal University of Science and Technology, Sylhet, Bangladesh
- Noraida A. Ghani
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Affiliation School of Distance Education, Universiti Sains Malaysia, Penang, Malaysia
- Anton A. Kamil
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Affiliation School of Distance Education, Universiti Sains Malaysia, Penang, Malaysia
- Adli Mustafa
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Affiliation School of Mathematical Sciences, Universiti Sains Malaysia, Penang, Malaysia
Competing Interests
The authors have declared that no competing interests exist.
Author Contributions
Conceived and designed the experiments: RK MKMN LAK NAG AAK AM. Analyzed the data: RK MKMN LAK NAG AAK AM. Wrote the paper: RK MKMN LAK NAG AAK AM.