by Shiva Hari Subedi | Russell Alpizar-Jara | Gyan Bahadur Thapa | Department of Applied Sciences and Chemical Engineering, Pulchowk Campus, Institute of Engineering, Tribhuvan University, Nepal | Research Center in Mathematics and Applications (CIMA-U.E.), Institute for Research and Advanced Training (IIFA), and Department of Mathematics, School of Science and Technology, University of Evora, Portugal | Department of Applied Sciences and Chemical Engineering, Pulchowk Campus, Institute of Engineering, Tribhuvan University, Nepal
