A couple of enterprising students from Thailand have come up with an innovative business strategy - sleeping in problematic houses and apartments to certify that they are free of ghosts.

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Taiwan , Chiang Mai , Thailand , Thai , Taiwanese , Wifei Cheng , Sretthawut Boonprakhong , Syarafina Yusof Unsplash , Rajamangala University Of Technology Lanna , Rajamangala University , Technology Lanna ,