02-01843 [Hellenic Literary and Historical Archive: 1924 ΣΥΚ ΑΛΦ]
Ioannis M. Sikokis, Alfavitario, Meros B΄, ed. , Ioannis D. Kollaros, Athina 1924, Hellenic Literary and Historical Archive

03-20651062 [Library of the Hellenic Parliament: 20651062]
Ioan. M. Sikokis, Alfavitario. Meros B', ed. , Ioannis D. Kollaros ke SIA, Athina 1932, Library of the Hellenic Parliament

20-E0267 [Society for the Study of Modern Greek Culture and Education: E0267]
Ioannis M. Sikokis, Alfavitario meros deftero, ed. , Ioannis D. Kollaros, Vivliopolio tis "Estias", Athina 1920, Society for the Study of Modern Greek Culture and Education