SELECT DISTINCT

    page_title,

    page_len,

    ll_title,

    ll_lang

FROM

    page, langlinks

WHERE

    page_title in (

        SELECT page_title AS member

        FROM categorylinks LEFT JOIN page ON (cl_from = page_id)

        WHERE cl_to = "Top-priority_mathematics_articles"

    )                                           # Judul halaman ada di Kategori

    AND page_namespace = 0                      # dan halaman itu ada di ruang nama Utama

    AND page_id = ll_from

    AND (

      ll_lang = 'id'

      OR page_id NOT IN (

            SELECT ll_from

            FROM langlinks

            WHERE ll_lang = 'id'

        )

    )

​

ORDER BY

    page_len desc

LIMIT 500

;