“RAPID INVESTIGATION OF THE METABOLITE CONTENT IN HIBISCUS SABDARIFFA Var. UKMR-2 CULTIVATED UNDER THE INFLUENCE OF ELEVATED CO2 USING TRI-STEP FT-IR SPECTROSCOPY ”. Jurnal Teknologi (Sciences & Engineering), vol. 83, no. 1, Dec. 2020, pp. 75-83, https://doi.org/10.11113/jurnalteknologi.v83.14825.