Inding, Gusmayadi dan Pramulani Mulya, Lestari dan Erike Trisnande, Erike VARIATION CONCENTRATION OF CITRIC ACID AS ACID SOURCES ON THE PHYSICAL PROPERTIES OF THE PERICARP MANGOSTEEN (Garcinia mangostana L) EXTRACT EFFERVESCENT TABLET. VARIATION CONCENTRATION OF CITRIC ACID AS ACID SOURCES ON THE PHYSICAL PROPERTIES OF THE PERICARP MANGOSTEEN (Garcinia mangostana L) EXTRACT EFFERVESCENT TABLET.