[1]
J. R. Pérez-Pérez, L. M. Silveira-Sáenz, and M. K. Olguín Puch, “Fair for the exchange of nowledge: seeds, animals and working tools K’eex ne’ek oób balchee’ob yetel u nuculil meyaj”, geografia, no. 46-47, pp. 29–52, Dec. 2011.