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Azhar A Rahman; Anwar Usman; Suchada Chantrapromma; Hoong-Kun Fun (2003). "Redetermination of hydronium perchlorate at 193 and 293 K" (in en). Acta Crystallographica C59 (Pt 9): i92-4. doi:10.1107/s0108270103010461. பப்மெட்:12944636.
Azhar A Rahman; Anwar Usman; Suchada Chantrapromma; Hoong-Kun Fun (2003). "Redetermination of hydronium perchlorate at 193 and 293 K" (in en). Acta Crystallographica C59 (Pt 9): i92-4. doi:10.1107/s0108270103010461. பப்மெட்:12944636.