Search for the Higgs boson in fermionic channels using the ATLAS detector

The property measurements of the recently discovered boson at around the mass of 125 GeV con rm that it is compatible with the Higgs boson which is predicted by the Standard Model. Since those measurements are performed using the bosonic decay channels, it is particularly important to observe and measure the same boson using the fermionic decay channels. We present the reviews of the searches for the Higgs boson decaying to a pair of $\tau$-leptons, muons, and $b$-quarks with the ATLAS experiment at the LHC.