“Short Communication Determination of Positional Isomers of Monoenoic Fatty Acids Separated From Seed Oils of Nicotiana Tabacum L. And Nicotiana Rustica”. 2008. Biological Sciences - PJSIR 51 (3): 147-49. https://www.v2.pjsir.org/index.php/biological-sciences/article/view/659.