PD PD attraction, ID ID attraction, positive externalities, negative externalities..hahah!!this is what i have studied today!!i am so drain after all the studying.how i wish i am having my promos now and not 3 weeks later!!i need the time off to enjoy myself and to play!!when can i ever have that???it dosen't seems like a holiday to me in the 1st place because all of us have to prepare for the big Ps awaiting us!!!time to go!!just here to rant!!goong is waiting for me!!!hahah..i wanna watch!!!