Kotz, John C.; Treichel, Paul and Townsend, John Raymond (2009). Chemistry and chemical reactivity. 2. Belmont, Ca, USA: Thomson Books. hlm. 351. ISBN0-495-38712-6. Diarsipkan dari versi asli tanggal 2023-08-07. Diakses tanggal 2015-12-23.Pemeliharaan CS1: Banyak nama: authors list (link)
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Kotz, John C.; Treichel, Paul and Townsend, John Raymond (2009). Chemistry and chemical reactivity. 2. Belmont, Ca, USA: Thomson Books. hlm. 351. ISBN0-495-38712-6. Diarsipkan dari versi asli tanggal 2023-08-07. Diakses tanggal 2015-12-23.Pemeliharaan CS1: Banyak nama: authors list (link)