PUTRI KWARTA, Cityta. Improving Teenagers’ Knowledge and Attitudes Towards Anaemia and Blood Groups Through a Comprehensive Education Programme at Dr. Soetomo High School, Surabaya. Sinesia : Journal of Community Service, [S. l.], v. 2, n. 1, p. 72–81, 2025. DOI: 10.69836/sinesia-jcs.v2i1.348. Disponível em: https://jurnal.sinesia.id/index.php/Sinesia-JPS/article/view/348. Acesso em: 2 oct. 2025.