Ergasheva Robiya Axmatjon qizi, “MASHINA MEXANIZMLAR NAZARIYASI FANI MASALALARIDA IKKINCHI TARTIBLI O’ZGARMAS KOEFFISIENTLI ODDIY DIFFERENSIAL TENGLAMANING TATBIQ ETISH”, PED, vol. 10, no. 3, pp. 87–89, Jun. 2022.