Muhammad Nadeem, Muhammad Ajmal, Fazal Rahman, and Muhammad Ayaz, trans. 2015. “Analytical Characterization of Butter Oil Enriched With Omega-3 and 6 Fatty Acid Sthrough Chia (Salvia Hispanica L.) Seed Oil”. Pakistan Journal of Analytical & Environmental Chemistry 16 (2): 68 – 71. https://doi.org/10.21743/.