Gaya APA
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Belitung Nursing Journal : Volume 4 Issue 2:March-April 2018 (Volume 4 Issue 2:March-April 2018).
Belitung:
Belitung Raya Foundation.
Gaya MLA
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Volume 4 Issue 2:March-April 2018
Belitung:
Belitung Raya Foundation,
2018.
Text.