found: Kurtakoti, Ke. Di. Yaśōdhara cariteya kāvyatantra, 1982:pref. (Janna) data from India (13th cent.)
found: LC data base, 2/8/85(hdg.: Janna)
found: Kr̥ṣṇakumār, Si. Pi. Janna mattu avana kr̥tigaḷu, 1989:p. 5 (Janardana ; Janniga ; Jannayya ; Jannamarasa ; Jānaki)
found: Yaśodhara carite, 2013:t.p. (Janna) foreword (the Jain poet of the twelfth-thirteenth century AD, figure indisputable among the major classical poet of Kannada literature; born into a family of eminent scholars in the latter half of the twelfth century on June 25, 1163 near Halebidu; King Veeraballala who conferred on him the title "Emperor among poets" and made him the chief court poet)