Ms. RichaShakya, Ms. Savitri Gupta, Ms. Shailja Roy, Ms. Urmila. A STUDY TO EVALUATE THE EFFECTIVENESS OF SELECTED AUDIO-VISUAL MODALITIES ON LEVEL OF KNOWLEDGE RERGARDING VARIOUS IMPACTS OF SUBSTANCE ABUSE AMONG ADOLESCENTS AT HIGHER SECONDARY SCHOOLS, KANPUR, UP. IJPRT [Internet]. 2026 Oct. 19 [cited 2026 Oct. 20];16(2):6736-40. Available from: https://www.ijprt.org/index.php/pub/article/view/3393