Issue №30

• 110.34907/JPQAI.2020.40.49.001;
• 210.34907/JPQAI.2020.25.17.002;
• 310.34907/JPQAI.2020.63.56.003;
• 410.34907/JPQAI.2020.86.90.004;
• 510.34907/JPQAI.2020.60.39.005;
• 610.34907/JPQAI.2020.20.33.006;
• 710.34907/JPQAI.2020.49.88.007;
• 810.34907/JPQAI.2020.53.96.008;
• 910.34907/JPQAI.2020.88.43.009