[en] The energy spectra and angular distributions of protons from the ¹²C(e,e^primep) coincidence reaction have been measured at azimuthal angles of φ_p=-45 ^circle and -135 ^circle out of the scattering plane, at energy transfer of 40 MeV and momentum transfer of 0.35 fm^-1 (69 MeV/c). The longitudinal-transverse interference term, as well as the non-interference term of the (e,e^primep₀) cross section have been obtained, and the transition amplitudes are deduced in the LS coupling basis. The cross sections are compared with an RPA calculation. The photo-reaction cross section derived from the transverse term is in reasonable agreement with previous experimental results. ((orig.))