- Speak in a Week Spanish Week Two: See, Hear, Say, & Learn (Speak in a Week)
- Speak in a Week! Spanish: See, Hear, Say & Learn, Week Three (Speak in a Week)
- Hear-Say French: The Kids Way to Learn (Amazing Hear Say)
- Speak in a Week!: French Week One (Speak in a Week)
- Hear-Say: The Kids Way to Learn Spanish
- Herman Galvin
- Geza Takacs
- William B. Fischer
- Peter N. Richardson
- Ingrid/Wisniewska
- Michael Scott Doyle
- Jerome Hu
- Ramona Gönczöl-Davies
- Agnes Arany-Makkai
- Justin Jon Rudelson
- Dinara Georgeoliani
- Tayfun Caga
- Ksana Kiiw
- T. Bruce Fryer
- William Flint Smith
- Ronald C. Cere
- Yasin M. Alkalesi
- Shou-Ying Lin
- Somsong Buasai
- Somsong