JEKTI, Dwi Sulistya Dyah; SOEMOHARDJO, Soewignjo; MUTTAQIN, Zainul. The Absence of Urease Enzymatic Activity of Helicobacter pylori Coccoid Form. The Indonesian Journal of Gastroenterology, Hepatology, and Digestive Endoscopy, [S. l.], v. 9, n. 2, p. 35–41, 2008. DOI: 10.24871/92200835-41. Disponível em: https://www.ina-jghe.com/index.php/jghe/article/view/220. Acesso em: 21 oct. 2026.