In terms of pedagogical application, and in conjunction with our
earlier study (Boonruang & Nantana 2000), the researchers suggesUhat
(f) in English is comparatively not a problem sound for the Thai speakers
since they pronounce it as [f] 100% initially and 95% word-finally (in 1).
We recommend then for teachers of English pronunciation or conversation
to leave out drills or practice for (f) in their classes and instead spend
more time on pronunciation practice for (v).