Gaya APA
Soemohardjo, S. (1995).
Gastritis Helicobacter Pylori and Pepticum Ulcer (Helicobacter Pylori Gastritis dan Ulkus Peptikum) .
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.
Gaya MLA
Soemohardjo, Soewignjo.
"Gastritis Helicobacter Pylori and Pepticum Ulcer (Helicobacter Pylori Gastritis dan Ulkus Peptikum)".
:
,
1995.
Text.