It looks like Burmese to me... [1] or Javanese [2] , or some such Brahmic script. [1] https://en.wikipedia.org/wiki/Burmese_language [2] https://en.m.wikipedia.org/wiki/Javanese_script
But, some of what I'm assuming are the vowel marks are throwing me off, since they don't look quite right for any of the writing systems mentioned so far, at least based on the descriptions I can find. Someone mentioned that it looks like the paper might have been photographed from the wrong side, so maybe this is part of the issue.