EFFICIENCY OF LEARNING PROCESS FOR BEGINNERS IN THE GAME OF TENNIS. - CARMEN, ENE-VOICULESCU; LIVIU, PANAIT; IOANA, CHELARU; LILIANA, CONSTANTINESCU; GEORGIANA, FILIP ANDREEA; CĂTĂLIN, CATANĂ COSMIN (Ovidius University Annals, Series Physical Education & Sport/Science, Movement & Health, 2013)