Ozcan, Arif, and Mehmet Oktav. “Comparison of Brightness and Colour Characteristics of Mineral and Vegetable Oil-Based Offset Printing Ink”. Asian Journal of Chemistry 23, no. 6 (March 4, 2011): 2685–2687. Accessed July 23, 2024. https://asianpubs.org/index.php/ajchem/article/view/10488.