| Thai for beginners / by Benjawan Poomsan Becker ; [edited by Craig Becker, Ron Colvin II, Hal Schuster] / Bangkok : Paiboon Publishing , cop. 1995 |
Koha |
Sudoc |
| Lao for beginners / Buasawan Simmala and Benjawan Poomsan Becker / Berkeley, CA : Paiboon Pub. , c2003 |
Koha |
Sudoc |
| Thai for intermediate learners / by Benjawan Poomsan Becker ; [Edited by Craig Becker] / Bangkok : Paiboon Pub. , cop. 1998 |
Koha |
Sudoc |
| Thai for advanced readers = = ภาษาไทยชั้นสูงสำหรับชาวต่างชาติ [Phāsā Thai chansūng samrap chāo tāngchāt : / by Benjawan Poomsan Becker / Bēnčhawan Phūmsǣn Bēkkœ̄] / Bangkok : Paiboon Pub. , 2000 |
Koha |
Sudoc |