Sorry, but no; neither of these is a good way to get backlinks.
Quality backlinks are those you earn by having a great site which other sites choose to link to. These are the links which Google (and other search engines) regard as meaningful.
Links which you place yourself are considered all-but-worthless, and any reputable site will mark user-submitted links nofollow, in accordance with Google’s guidelines (as we do here).
I have repeatedly posted this link to Google’s guidelines on link schemes, and given how few people ever bother to click it, you’d think that would mean people already understand this stuff, but judging by the number of times I read the same bad advice here, they don’t. So again, for anybody who cares enough about their site to want to do thinks the right way, here is the link: https://support.google.com/webmasters/answer/66356?hl=en&ref_topic=6001971
For those with an unaccountable aversion to reading Google’s guidelines, perhaps you would prefer this. It is an article from 2012, listing “10 Old SEO Methods You Need to Stop” and number 1 on that list is article submission.