PRODUCTION OF ESTERS BY ETERIFICATION OF FATTY ACIDS OF SUNFLOWER, OLIVE AND SOYBEAN OILS WITH MANNITOL, SORBITOL AND XYLITOL . CET [Internet]. 2026 Sep. 28 [cited 2026 Oct. 25];1:29-3. Available from: https://journals.polytechnic.am/index.php/cet/article/view/456