DR. SISTER DORIS D’SOUZA A.C.; DR. DURGA SHARMA; PROF. (EMERITUS) R.P. SINGH. EFFECTIVENESS OF SELECTED INSTRUCTIONAL APPROACHES IN DEVELOPING ENVIRONMENTAL AWARENESS AMONG IX GRADE STUDENTS IN PATNA DISTRICT, INDIA. Researchers World - International Refereed Social Sciences Journal, [S. l.], v. 4, n. 2, p. 109–114, 2021. Disponível em: https://www.researchersworld.com/index.php/rworld/article/view/1043. Acesso em: 3 aug. 2025.