Developments in Titanium‐Based Alkali and Alkaline Earth Metal Oxide Catalysts for Sustainable Biodiesel Production: A Review. - Venkatesh, Yatish Kalanakoppal; Ravikumar, Mithun Prakash; Ramu, Shwetharani; Ravikumar, Chandan Hunsur; Mohan, Sakar; Geetha Balakrishna, R. (Chemical Record, 2023)