Major Scale with Solfège Theory Things   William Wieland
do
 ti
la
sol
fa
mi
re
do
More than an Octave

Curwen/Glover Hand Signs
(Kodály integrated these into his teaching methods.)

Liber Usualis (1961) . (MusicaSacra)
"Ut queant laxis" is on p. 1504.

Why sing with Solfège?