Scotland were delighted with their victory in Mal Del Plata
Andy Robinson said fighting spirit secured Scotland's win over Argentina - and their first-ever two-Test series success in the southern hemisphere.
"Some days you go and win ugly, some days you go and win through courage. I think today we won with courage," the head coach said after the 13-9 victory.
It was Scotland's third win in succession away from home - their best run since 1982.
"It gives everybody belief in what we are trying to do," said Robinson.
"Winning gives you belief.
"Everybody was desperate to win the game, the replacements came on the field and gave us some energy, they performed really well."
In Mal del Plata, Jim Hamilton took only three minutes to do what the Scots failed to achieve a week earlier in their 24-16 win in Tucaman - score a try.
It's special and a great feeling. We'll enjoy this moment
Scotland fly-half Dan Parks
Dan Parks, the man of the match last weekend, added the conversion and two penalties, but the visitors had to defend stoutly to secure their win against the determined Argentines.
"I think we scrummaged well and also the players on the bench like Alasdair Dickinson and Scott Lawson did well when they came on," Robinson said at Estadio Jose Maria Minella.
"We have shown very consistent form against a very good back row."
However, Robinson believes Scotland could have opened up more than a 10-6 gap by half-time.
"Considering that we controlled the first half as well as we did, we didn't control the scoreboard," he said.
"We went into the second half with a four-point lead. We have to learn that, when we have the dominance that we had, you have to be sure to be 15 points clear."
Fly-half Parks, who kicked all of Scotland's points in the first Test win over the Pumas, was delighted to be part of a historic win.
"It's the first time, certainly since I've been involved, that we've won two games away. It's very pleasing," he told BBC Scotland.
"It's special and a great feeling. We'll enjoy this moment."
Scotland captain Alastair Kellock was delighted with a run that started with a 23-20 win over Ireland at Croke Park in the Six Nations.
A Japan Select were beaten 24-5 in a non-cap game before the two victories in Argentina.
"If you had asked anybody before the Croke Park game 'four on the bounce?', they would have said no," he said.
"We can win any game. In saying that, there is world-class opposition out there and they are only going to get stronger and stronger."
It was not just the victory that was special for lock Hamilton.
"It's great to score my first try for Scotland, especially against a good side like Argentina," he said.