គណិតវិទ្យា ថ្នាក់ទី១

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'http://www.elibraryofcambodia.org/wp-content/uploads/2017/04/2081.jpg'	72487	INSERT INTO el_postmeta (post_id,meta_key,meta_value) VALUE (72489,'_thumbnail_id',72487); -- 50		write
'http://www.elibraryofcambodia.org/kak-nit-vi-chea-tnak-ti-1/'	0 results

គណិតវិទ្យា​ ថ្នាក់ទី១