English
https://www.youtube.com/watch?v=JR8SRuaLT8Ahttps://www.youtube.com/watch?v=tybZppr9y_ohttps://www.youtube.com/watch?v=7xvyUZY6Cfshttps://www.youtube.com/watch?v=f9ugyIuQnqY
History
Philosophy
https://www.youtube.com/watch?v=2srhZ1_hOMUhttps://www.youtube.com/watch?v=XjJ4Urlq2NIhttps://www.youtube.com/watch?v=ZxmIb8L_a1chttps://www.youtube.com/watch?v=FQfrj_-k33Ihttps://www.youtube.com/watch?v=HJvYr3OgXT8https://www.youtube.com/watch?v=LjcZMxzIlFk&list=PLX6CtFXZ_PBc1ZTu29yOiPuPLARtKsBpEhttps://www.youtube.com/watch?v=ADuoJ0RvUuM
Political Science
https://www.youtube.com/watch?v=RUYtkiYjRdEhttps://www.youtube.com/watch?v=eUygR4H3WF4&t=573shttps://www.youtube.com/watch?v=BKZmQMAkENkhttps://www.youtube.com/watch?v=304ODWVT20whttps://www.youtube.com/watch?v=Ri6rrSpgbsMhttps://www.youtube.com/watch?v=ODQoa28TnDchttps://www.youtube.com/watch?v=QrVOFpnavCY
Chemistry
https://www.youtube.com/watch?v=mqa_M5FDBvEhttps://www.youtube.com/watch?v=YEeoAproXHkhttps://www.youtube.com/watch?v=3-Pnwz45-ighttps://www.youtube.com/watch?v=zCC-tVXt0e8https://www.youtube.com/watch?v=ReGzDRf5fTwhttps://www.youtube.com/watch?v=T6pFn14lvrQ
Bengali
https://www.youtube.com/watch?v=LYO1icEURrchttps://www.youtube.com/watch?v=5k7HdGQEgZ0https://www.youtube.com/watch?v=BLaYK1dEqFYhttps://www.youtube.com/watch?v=6fNyc0zSVN8https://www.youtube.com/watch?v=rurl1f54q_4https://www.youtube.com/watch?v=q5WAIX0uOe8
Physics
https://www.youtube.com/watch?v=WQX2qgzp1oYhttps://www.youtube.com/watch?v=susygbqjKwIhttps://www.youtube.com/watch?v=HSw1HyIMylYhttps://www.youtube.com/watch?v=uS39XKiqsUshttps://www.youtube.com/watch?v=9-HQ6kcEq1Mhttps://www.youtube.com/watch?v=R2ZJzIJTqJchttps://www.youtube.com/watch?v=MX4107Cgz7Q&t=238shttps://www.youtube.com/watch?v=UVprTjztCmshttps://www.youtube.com/watch?v=7qqAgeUceXEhttps://www.youtube.com/watch?v=0zMXsAAJuz0
Mathematics
https://www.youtube.com/watch?v=dERpinL86NIhttps://www.youtube.com/watch?v=pKXidR0s0z4https://www.youtube.com/watch?v=gs-O5moPSuAhttps://www.youtube.com/watch?v=efYtkUYk6jI&t=245shttps://www.youtube.com/watch?v=-BnGmtunWm0
Biology
https://www.youtube.com/watch?v=UGDvyP-w4vIhttps://www.youtube.com/watch?v=EyM0bu52Vmkhttps://www.youtube.com/watch?v=tuvpXqtiyp4https://www.youtube.com/watch?v=jF9Mo3NvF5o&list=PLX6CtFXZ_PBdTNp9mkp4GLs-yATSqmO1ohttps://www.youtube.com/watch?v=KylOfaf0WMYhttps://www.youtube.com/watch?v=LAo7x78bw2shttps://www.youtube.com/watch?v=Nl8z7Z6q_hI