https://www.niets.or.th/th/catalog/view/630 by Dr. Kobkrit Viriyayudhakorn ([email protected])
O-Net English M.6 Testing set: Year 2021 Training set: Year 2019-2020
O-Net Math M.6 Testing set: Year 2021 Training set: Year 2019-2020
O-Net Science M.6 Testing set: Year 2021 Training set: Year 2019-2020
O-Net Social M.6 Testing set: Year 2021 Training set: Year 2016-2020
O-Net Thai M.6 Testing set: Year 2021 Training set: Year 2019-2020