Khasanah, Nur, Daniel Daniel, & Eva Marliana. " SYNTHESIS OF DIETANOLAMIDE SURFACTANT FROM METHYL ESTER OF SUNFLOWER SEED OIL (Helianthus annuus. L) THROUGH AN AMIDATION REACTION." JURNAL KIMIA MULAWARMAN [Online], 17.2 (2020): 74-79. Web. 3 May. 2024