That year he wrote an autobiography, entitled La Conversione di un Giavanese (The Conversion of a Javanese); the work was released in Italian, Dutch, and Spanish.
Tahun itu ia menulis sebuah autobiografi, berjudul La Conversione di un Giavanese (Pertobatan Seorang Jawa); karya tersebut diterbitkan dalam bahasa Italia, Belanda, dan Spanyol.