Best Place To Get Ap Mods For Melee?

[XuillKarasuga]

Im really needing to get the AP mod for Melee but i been hacking and slashing through Grineer Missions with no such luck. Im wondering if there are certain planests that will provide me with better luck. And does the flat dmg mods help duel Zorens or am i wasting my creds on that for them?

[Probta16]

Well, i have moreless 1359 mods and only one Sundering Strike. I think i get it from corpus.

[Kanaris]

I got my Sundering Strike from Infested. Uranus, though I'm not sure which mission.

[Jokyma]

Corpus have higher rate of dropping melee mods :) while infested do drop north wind sometime, but mainly corpus do the job.

[_Rue_]

can anyone else confirm? I really want one. :D