“IPAK FIBROINIGA IMMOBILLANGAN NITROZO-R TUZI YORDAMIDA CO(II) IONLARINI SORBSION-SPEKTROFOTOMETRIK ANIQLASH”. 2026. Qo‘qon DPI. Ilmiy Xabarlar Jurnali 8 (8): 311-16. https://doi.org/10.70728/a.series.tab.v08.i08.036.