NGUYEN, T. H.; TRAN, T. T.; NGUYEN, P. D.; LEE, M. S. A green approach to recovering lithium and cobalt from spent lithium-ion batteries using dilute HCl solution mixed with H. sabdariffa flower extract as a leaching agent. Journal of Mining and Metallurgy, Section B: Metallurgy, v. 60, n. 2, p. 215-225, 13 Nov. 2024.