only b com, m com books don't take any book for reference
CA yaa particular books se study karo naaa ki gk Surya sab old pattern hai
R. Gupta's
Thanks
arihant publication
gk publications
G k publications or arihant for BSNL jao exam is good
BSNL Junior Accounts Officers' (JAOs) Exam (By Sura’s Publication) seems to do good.