Devasia, Jeena, B. Muniswamy, Pavankumar Jingade, Arun Kumar C. Huded, and M. K. Mishra. “Influence of ZnO and TiO2 Nanoparticles in the Establishment and Growth of in Vitro Callus Cultures of coffee”. Journal of Plantation Crops 51, no. 1 (October 20, 2023): 44–46. Accessed October 13, 2025. https://updatepublishing.com/journal/index.php/JPC/article/view/8470.