Amateurs Jin Yong-gab of South Korea and Vernon Sexton-Finck of Australia also join the tour after finishing among the top 40.
Harris, the leader since the first day at Palm Resort Golf and Country Club, recorded a four-day total of 15-under-par 273.
Australian David Bransdon finished second, three back following a final-round 72.
'Mission accomplished,' said a smiling Harris, whose round included three birdies and three bogeys. 'My swing didn't feel good today but I stayed patient and kept telling myself that pars were good.'
Jin, 22, became the first Asian amateur to capture an Asian Tour card despite an anxious finish with a 76, which included four bogeys and one double bogey. He was tied in 22nd place.
Finck, 25, from Western Australia, shot a 69 to also finish tied for 22nd.
'I am so happy and proud of myself,' said Jin, who only took up golf six years ago. 'I started so badly with three bogeys as I was aiming for a low score, but settled down into the round.'
Others who made it included India's Shiv Kapur, the former Asian Games gold medal winner. He enjoyed a chip-in birdie at the last hole en route to a bogey-free 68, to finish in 10th position.
The Asian Tour recently announced the first half of its 2005 schedule, which will include a minimum of 14 tournaments offering more than US$11 million in prize money.
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