TY  - JOUR
TI  - A numerical investigation for solving the sir model of covid 19 spread in Türkiye
AU  - ÖZDEK, D.
JO  - Sigma Journal of Engineering and Natural Sciences
PY  - 2026
VL  - 44
SP  - 1754
EP  - 1767
DO  - 10.14744/sigma.2026.2061
ER  -