자음 dictionary order:

منذ ٣ أعوام

dictionary order:
ㄱ (ㄲ), ㄴ, ㄷ (ㄸ), ㄹ, ㅁ, ㅂ (ㅃ), ㅅ (ㅆ), ㅇ, ㅈ (ㅉ), ㅊ, ㅋ, ㅌ, ㅍ, ㅎ
Aspirated ones are with more puff of air than the plain ones. As for tensed ones, you add
more stricture, but without puff of air, when letting out the sound. Tensed ones are
difficult for beginners, and many students take long time to acquire the correct
pronunciation.
ㄱ is similar to g as in god.
ㄲ is similar to k as in sky.
ㅋ is similar to k as in kill.
ㄷ is similar to d as in do.
ㄸ is similar to t as in stop.
ㅌ is similar to t as in two.
ㄹ is similar to tt as in butter (not [t] but a flap like a Spanish [r]), in a syllable initial
position.
ㄹ is similar to l as in filling, in a syllable final (받침) position.
ㅂ is similar to b as in bad.
ㅃ is similar to p as in spy.
ㅍ is similar to p as in pool.
ㅅ is similar to s as in astronaut.
ㅆ is similar to s as in suit.
ㅈ is similar to j as in jail.
ㅉ is similar to tz as in pretzel.
ㅊ is similar to ch as in charge.
ㅎ is similar to h as in hat.


cited from Korean lessons