Gaya APA
Situmorang, M. et al (0000).
The effectivity of innovated chemistry learning methods to increase student's achievement in teaching of solubility and solubility product .
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.
Gaya MLA
Situmorang, Manihar. et al.
"The effectivity of innovated chemistry learning methods to increase student's achievement in teaching of solubility and solubility product".
:
,
0000.
Art Original.