Silica extracted from ragihusk as heterogeneous catalyst for synthesis of biodiesel from waste cooking oil Sravanthi Veluturla*, Akansha Muniswamy Sagar, Vijay Kumar Venkatesh, Akshay Gangegowda, Afnan Shariff, 10.57647/j.ijc.2024.1403.23 Requires Subscription HTML Requires Subscription PDF views: 27 downloads: 320