UNESCO. Régionalisation de l’École nationale d’art et manufacture de Libreville Afrique Martin Goa / 13 agosto, 2019
UNESCO. For an interdisciplinary aesthetic education objectives, orientation, methodology Martin Goa / 13 agosto, 2019
UNESCO. Conservation of the Joseph Murumbi African Art Collection, Nairobi The Republic of Kenya Martin Goa / 13 agosto, 2019
