Esperanto the New Latin for the Church and for Ecumenism
Ulrich Matthias
Vlaamse Esperantobond v.z.w., 2002 - 144 pages

https://books.google.be/books?hl=en&lr=&id=bSghSZV054UC&oi=fnd&pg=PA12&dq=toki+pona&ots=rhxIjTWu-k&sig=pp4T0NDSYx8vrQDB-sA9GsOnMkM&redir_esc=y#v=onepage&q=toki%20pona&f=false
[p.21]

[...] and Toki Pona (2001) by Christian Richard, Canada.

#TokiPona #mention #anno2002
#UlrichMatthias #Esperanto #Latin #Epelanto #Latina #sona
#ChristianRichard

BTW :
First book Toki Pona mention I know of... in later editions in different languages some more information in added in about Toki Pona by the author.