On thermodynamics of charged AdS black holes in extended phases space via M2-branes background M. Chabab, H. El Moumni and K. Masmar Eur. Phys. J. C, 76 6 (2016) 304 Published online: 01 June 2016 DOI: 10.1140/epjc/s10052-016-4155-0