Conclusions CONCLUSIONS AND SUGGESTIONS

2. Suggestions to other researchers a. In this research, the researcher conducted Clustering Technique in teaching vocabulary at the first grade students of Senior High School to investigate the effects of the technique in their vocabulary achievement. Other researchers can conduct this technique on different level of students. It can be at the second level or the third level of Senior High School or it can be applied at Junior High School. b. The researcher applied Clustering Technique in teaching vocabulary dealing with Real Object, Occupation, and Sport. Other researcher could apply Clustering Technique in other kind of vocabulary knowledge, for example dealing with daily activity, since Clustering Technique can help the students to develop their vocabulary knowledge due to its rule to make branches from the core word. 86 REFERENCES Allen, E. D., Vallette, R. 1997. Classroom Techniques: Foreign Language and English as a Second Language. Prospect Heights, IL: Waveland Press. Arikunto, Suharsimi, 1989. Dasar-dasar Evaluasi Pendidikan. Jakarta: PT Rineka Cipta. Arikunto, Suharsimi. 2006. Penelitian Tindakan Kelas. Jakarta: Bina Aksara. Arikunto, Suharsimi. 1992. Prosedur Penelitian Suatu Pendekatan Dikdaktik Edisi Revisi. Jakarta: Rineka Cipta. Bismoko, J. 1976. An Introductory Reader to Method of Teaching English in Indonesia. Yogyakarta. IKIP Sanata Dharma. Burton, S.H. 1982. Mastering in Education. Englewood Cliffs. New Jersey: Prentice Hall Inc. Dollaghan, Christine. 2013. 9 Smart Ways to Help Build Your Child’s Vocabulary.From:http:www.parade.com50557jmarquez Retrieved on November 5th 2013. Finnochiaro, Marry. 1964. English as Second Language; From Theory and Practice. New York: Simon and Scuster. Fries, C. C. 1973. Teaching and Learning English as a Foreign Language. New York: The University of Michigan Press. Fraenkel, J. R and Wallen, N. E. 1993. How to Design and Evaluate Research in Education. New York: San Fransisco State University. Garrow, Frank F. 1972. The Learning Game, Strategies For Secondary Teacher. Merril Publishing Company: Ohio Charles E. Hatch, Evelyn and Hossein, Farhady. 1982. Research Design and Statistics for Applied Linguistics. Rowley, Massachusetts: Newbury House Publisher, Inc. Heaton, J. B. 1991. Writing English Language Test. New York: Longman Inc. Hornby, A.S. 1995. Oxford Advance Learners Dictionary Current English. New York. Oxford University Press.