Vitasari et al. 2023. The Development of the Livelihood of Menongkah of the Duano Tribe into the Cultural Festival of the Indragiri Hilir Community. Jurnal Ekologi, Masyarakat dan Sains. 4, 1 (Jul. 2023), 38–43. DOI:https://doi.org/10.55448/ems.v4i1.89.