In Reply to: one way tickets posted by chb on Wednesday, 29. October 2008 at 07:40 Bali Time:
Although not always enforced, the letter of the law stipulates anyone entering Indonesia requires proof of an onward ticket, to allow entry. Puchase a one way ticket Medan-KL on the net with Air Asia for 440000 rupiah. I believe this to be the cheapest(legal) way of proving onward travel.
I have known of people to mock up an e-ticket on their computer to accommodate the requirements, but this is not advised.