Edukashon merkansia/servisio HAL (open archive) 3.0 3.0 di 5 strea (basá riba 1 revishon) Ekselente0%Hopi bon0%Promedio100%Pober0%Teribel0% Dor diasrarp liber di komersio20/08/2022 HAL is an open archive where authors can deposit scholarly documents from all academic fields. Lesa Mas