Biodiesel Production using Helianthus annuus (Sunflower) Seed Oil by Trans-Esterification Method. Bioremed Sci Technol Res [Internet]. 2020 Dec. 31 [cited 2026 May 11];8(2):24-7. Available from: https://journal2.hibiscuspublisher.com/index.php/BSTR/article/view/555