ABSTRACTrnrnrn(A) MIRANTIAYU NINGSIH (2005210140)rnrn(B) FORMULASI TABLET EFFERVESCENT DENGAN BASA KALSIUM KARBONAT NANO DARI HERBA PEGAGAN (Centella asiatica (L.) Urban)rnrn(C) xiii + 91 page; 30 table; 7 picture; 22 attachment.rnrn(D) Keyword : gotu kola herb, nano calcium carbonate, effervescent tablet.rnrn(E) Gotu cola extract (centella asiatica (L.) Urban) can be used to improve concen…