1. Oral traditions, including folklore, folk poetry and songs, traditional expressions, and traditional riddles.

2. Indonesian language education, including innovations in local culture-based language learning and cultural literacy.

3. Linguistics, including Systemic Functional Linguistics (SFL)—such as language metafunction analysis, transitivity, and situational-cultural context—as well as other linguistic subfields comprising theoretical linguistics, pragmatics, Critical Discourse Analysis (CDA), sociolinguistics, ethnolinguistics, and applied linguistics.