W.S. · Warcho Stefan · Wroski Stefan
Europhone Language Centre · Europhone Language Centre PTE Ltd
| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| A Simple Thai: Grammar | 978-9971-9946-6-2 (9971-9946-6-6) | 1992 | |
| Simple Thai Plus Dictionary | 978-9971-9945-0-1 (9971-9945-0-X) | 1991 | Chitraporn Kiatipaiboon |