The forward believes the victory over their South American rivals a year ago was the catalyst for their run of good form over the past 12 months
The Manchester City forward scored the winning goal in Barranquilla, as Alejandro Sabella's team came from behind to record a 2-1 victory.
Since then the Albiceleste have not lost a competitive match and are now top of the CONMEBOL qualifying group.
"We went to Colombia and we were all in agreement about what was going on. Each of us put in a little more effort than previously and that really helped us," he told reporters at a press conference.
"Sometimes words go with the wind, but that day, what we said was reflected on the pitch and it really gave us a good result.
"This is why we must stay the same and not give up, because football is football and one day you're up there and the next you're down."
Argentina are three points clear of second placed Ecuador and have an eight-point advantage over Venezuela, who occupy the final automatic qualification position.