M.M. Taha, O., S. Tawfiq, K. and M. Jarullah M. Jarullah, S. 2019. Preparation of biodiesel fuel from Urtica dioica seeds oil and study different Properties. Journal of Education and Science (JES). 28, 4 (Dec. 2019), 33–47. DOI:https://doi.org/10.33899/edusj.1999.163324.