Department of Business Administration and Accounting;
Buraimi University College;
Al-Buraimi;
Oman;
Department of Mathematics;
Abdul Wali Khan University;
Mardan;
Pakistan;
Department of Mathematics;
University of Malakand;
Chakdara;
Lower Dir District of Khyber Pakhtunkhwa;
Pakistan;
Mathematical; Model; Optimal; Control; Pontryagin’s; Maximum; Principle; Numerical; Results;