Suyanto & SUSILO. (2014). Metodologi penelitian cross sectional. Boss Script.
Chicago-čujuhus (17. p.)Suyanto juo SUSILO. Metodologi Penelitian Cross Sectional. Boss Script, 2014.
MLA-čujuhus (9. p.)Suyanto juo SUSILO. Metodologi Penelitian Cross Sectional. Boss Script, 2014.
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