ONANUGA PA. Relative Effectiveness of Generative Learning Strategy on Students’ Academic Achievement in Senior Secondary School Biology: Sustainable Development Perspective. ГТУВ [интернет]. 10 Юни 2020 [цитиран 17 Ноември 2025];4(1):12-2. достъпен на: https://aj.tu-varna.bg/index.php/ajtuv/article/view/134