CHANTHANAKHONE, S.; SINGSITHA, S.; MAHAPНОМ S.; KEOKASEUMSOUK, S.; SYSOULATH, S.; NOUTHAPNONE, T.; KEODADOK, T. The Impact of the COVID-19 on Teaching and Learning at Secondary Schools in Champasack Province: This Study Examined the Effects of the COVID-19 Pandemic on Secondary School Students and Teachers in Champasak Province, Laos. A Total Population of 724 Individuals Was Identified across Nine Districts and One municipality... cusj 2024, 7, 169-181.