Petrosina Waremra, M.Pd., is a teacher at SMA Kristen Rehoboth Ambon. She began her teaching career at PAUD Little Angels – AUSCAN Study Center in 2005 and has taught across various educational levels, from early childhood to senior high school. Actively involved in literacy and educational outreach, she volunteers within the Protestant Church of Maluku (GPM). She is also the author of a bilingual storybook, developed as part of her master’s thesis research at Pattimura University.