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【参考リンク】
Fourth Quarter 2020 Social Weather Survey on Learning Delivery Modalities (Part 1): 87% of school-age Filipinos are currently enrolled in school, mostly in elementary and through Modular Distance Learning
(SWS) 2021/02/24 http://www.sws.org.ph/swsmain/artcldisppage/?artcsyscode=ART-20210224084847