OBAHIAGBON, Kessington; AHONKHAI, David Ohimai. Optimized Biodiesel Production from Waste Cooking Oil Using Nickel (II) Nitrate Doped Chicken Manure as Catalyst. European Journal of Applied Sciences, [S. l.], v. 11, n. 3, p. 812–824, 2023. DOI: 10.14738/aivp.113.14891. Disponível em: https://scholarpublishing.org/journals/index.php/EJAS/article/view/8496. Acesso em: 30 may. 2026.