Chiyerekezo cha "Kuyamba kwa kutha kwa zida za nyukiliya"
Jacques Yves Costeau School, Salta Jacques Yves Costeau School, SaltaChiyerekezo cha "Kuyamba kwa kutha kwa zida za nyukiliya" ndi ophunzira aku 4to ndi 5to chaka cha sukulu ya Jacques Cousteau