source: Evidence on the effectiveness of specific ways of addressing these barriers is lacking, although there is some evidence to suggest that marketing of the availability of Welsh-language services can lead to increased uptake.
target: Prin yw’r dystiolaeth ynglˆyn ag effeithiolrwydd gwahanol ffyrdd o fynd i’r afael â’r rhwystrau hyn, ond ceir peth tystiolaeth sy’n awgrymu y gall marchnata’r gwasanaethau Cymraeg sydd ar gael gynyddu’r nifer sy’n eu defnyddio.