PURBA, Hermawan; SIMANJUNTAK, Helen Anjelina; SITUMORANG, Risanti. Phytochemical screening of bunga rosella (Hibiscus sabdariffa L) and antimicrobial activity test. Jurnal Pendidikan Kimia, [S. l.], v. 12, n. 2, p. 70–78, 2020. DOI: 10.24114/jpkim.v12i2.19398. Disponível em: https://jurnal.unimed.ac.id/2012/index.php/jpk/article/view/19398. Acesso em: 4 aug. 2025.