bhaaiyo n bhehno.... plz pardon me coz of asking lyk this...!! but plz... let me know... where i will find venn diagram stuff with 4 variable..!!very imp topic.. havnt studied yet...... plzzzzzzzzzzzzzzzzzzzz/////////link dedo.. ya direction dedo..!! but jaldi..!! exam on 30th..!!!

1) de raha hu,, ruk toh ja.. sabr kar..
2) de rahi hu... link bhi le..!!