بحرةكریمة, and غیاتبوفلجة. 2019. “Blood Groups and Their Relationship With Optimism Pessimism and the Awareness of Quality of Life A Field Study on Some Medium Schools Students at Mascara Algeria”. Psychological& Educational Studies Review 12 (2), 57-70. https://journals.univ-ouargla.dz/index.php/PES/article/view/5038.