๐๐ข๐ช๐ก๐๐ข๐๐ ๐ฆ๐ต๐ฟ๐ฒ๐ป๐ถ๐ธ ๐๐ฎ๐ถ๐ป - ๐ฆ๐๐๐ฑ๐ ๐ฆ๐ถ๐บ๐ฝ๐น๐ถ๐ณ๐ถ๐ฒ๐ฑ (๐๐ฝ๐ฝ) : ๐ฑAndroid app: https://play.google.com/store/apps/details?id=co.kevin.nxpgd&hl=en_IN&gl=US Mathematics Books - BS Grewal: https://amzn.to/3jraQlz RD Sharma: https://amzn.to/3YqHFxO MTG: https://amzn.to/3YaMRpJ