Abstract :
This study is aimed to find out the interlingual errors of English
pronunciation on the six consonantal sounds that do not exist in Indonesian
phonetic systems made by the fifth semester students of English Department
Study Program at UIN Raden Fatah Palembang. The focus of this research were
1) to find out interlingual errors of pronunciation made by the fifth semester
students of UIN Raden Fatah Palembang, and 2) to find out the most frequent type
of interlingual errors of their pronunciation. Twelve students of English
Department Study Program at UIN Raden Fatah Palembang were assigned to
pronounce 84 English words slowly and loudly related only to [v], [ð], [?], [d?],
[?], and [t?] sound. The frequency of errors was calculated as percentage. In this
research, the researcher used descriptive qualitative as the design of her research.
The study revealed that: 1) the participants made errors in [v], [ð], [?], [d?], [?],
and [t?] sound, and 2) the most frequent type of interlingual errors of
pronunciation made by participants was [?] sound. There were 178 errors made by
the students with the percentage of 25.95%. Among three positions of the
occurrence, the medial position was the most frequent category of error with 66
errors (9.62%), followed by 62 errors in the initial position (9.04%), and then 50
errors in the final position (7.29%). The identified source of errors was mainly
from the participants? first language or mother tongue interference that is, the
absence of the six English consonantal sounds in the Indonesian phonetic system.
It indicated that the participants faced difficulties in pronouncing those six
consonantal sounds that were completely different from Indonesian phonetic
system.