Pengaruh fraksi etil asetat sarang semut (myrmecodia pendans Merr. & Perry.) terhadap kadar AST, CKMB, cTnT dan cTn pada tikus infark miokard yang diinduksi isoproterenol = Effect of ethyl acetate fraction ants nest (myrmecodia pendans Merr. & Perry.) to levels of AST, CKMB, cTnT and cTnI in rat myocardial infarction induced by isoproterenol / Kalia Barnita