摘要：Thai students have come and studied at the UMP (Muhammadiyah University of Purwokerto) in Central Java, Indonesia. So, “Bahasa” Indonesia (Indonesia language) is needed as a communicative language to deliver lecture. “Bahasa” Indonesia has important role, either nationally or internationally, because foreign students are interested in studying here. The foreign learners study the “Bahasa” Indonesia as second language (foreign language) with the academic and practical purposes. BIPA stands for “Bahasa Indonesia untuk Penutur Asing” (Teaching Indonesian Language for Non-Native Speaker) develops in UMP to fulfill the need of foreign students. The study was aimed at analyzing language aspect difficulties on writing paper and developing BIPA material to improve students’ writing competence. This article highlight the process nine Thai students on their writing process. The data were collected through paper and writing task in first semester. The mistake classifications are word reduplication, the usage of “n”, “m”, “f ”, and “v”, English word, the confusing between “ng” and “g”, the affix mistakes, the mistakes of “a”, “i”, “u”, “e”, and “o”. Syllabus and BIPA learning material to support them understanding “Bahasa” Indonesia well. Most Thai students tried hard to master “Bahasa” Indonesia for their study here.There are two suggestions to develop BIPA learning material: it needs a good methodology and learning material; so, the teacher can manage it well and a further research beside the writing skill itsel.
关键词：Thai students; Indonesian language; difficulties; foreign language; writing skill; syllabus development; and learning material
