“Synthesis and Characterization of Biodiesel from Black Date (Canarium Schweinfurtii) Seed Kernel Oil in the Presence of Green-Synthesized Cu-Mn TiO2 Nanocatalyst Using Central Composite Design Approach”. 2026. Recent Advances in Natural Sciences 4 (1): 227. https://doi.org/10.61298/rans.2026.4.1.227.