Rezolvam, ne antrenam, biologie invatam! - Clasele 5-8 - Culegere - Silvia Olteanu, Camelia Afrim, Daniela Craciun, Stefania Giersch, Corina Kodjabashija, Camelia Manea, Florina Miricel, Adriana Neagu, editura Didactica Publishing House