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Photon activation technique is used to measure yields and cross sections of multinucleon photonuclear reactions on isotopes of natural molybdenum 92Mo, 94Mo, 95Mo, 96Mo, 97Mo, 98Mo, and 100Mo. The obtained results are compared with photoneutron data available from literature and with predictions of nuclear reaction simulation packages. An improved method of equivalent photon normalization which is used to compare data from experiments using bremsstrahlung and quasimonochromatic gamma-ray beams in a unified way is described. The photoproton reaction yields reveal a strong dependence on the isospin splitting effect of the giant dipole resonance. Since it is currently not possible to take isospin effects into account with the widely used simulation packages a simple method of inclusion of these effects into a TALYS calculation is described. Calculated photoproton cross sections corrected in this way are in a good agreement with the experimental results.