stress प्रतिबल

[@pssongs1779]

Thanks sir❤❤❤

[@jyotikewatjyotikewat8410]

Sir meri help kr dijiye n🙏🙏mujhe bsc fainal parsu University ka is sal paas hone ke imp questions BTa dijiye n pls kya padhu samjh nhi aa. Rha hai
Physics chemistry maths