Tell me which reference book you want

Decide any time slot today bec within half an hour I have to delete it….

Be ready at 6pm today

There is a problem in pdf I will share at 9pm

i will send cengage within a hour

as of now download dc pandy

cengage optics

download it asap i have to delete it

within a 10 min i will delete it

baki ka kal bhejta hu

ek saat yitna nahi bheja ja sakta

Why no??

Link for mentornut platform