Lima, J. A. ., Catharino, R. R. . and Godoy, H. T. . (2004) “Validation of methodology for determination of folic acid enriched margarine and evaluation of the stability of the vitamin during stockage”, Instituto Adolfo Lutz Journal - RIAL, 63(1), pp. 10–14. doi: 10.53393/rial.2004.63.34736.