Where does “wiyata bakti” come from?

wiyata bakti (Indonesian) comes from Indonesian bakti, from Malay bakti, from English bhakti, from Sanskrit भक्ति, from Sanskrit -ति, from Proto-Indo-European -tis — Derives abstract/action nouns from verb roots.

wiyata bakti (Indonesian): non-civil servant teachers who teach in state schools with the same teaching hours and responsibilities as civil servant teachers