Akoudad, Kawtar, and Fouad Jawab. “Difficultés De Transport International De Marchandises: Proposition D’un Cadre D’étude; Cas Du Maroc”.
European Scientific Journal, ESJ
, vol. 14, no. 14, May 2018, p. 137, doi:10.19044/esj.2018.v14n14p137.