Roberto Tobar
Roberto Andrés Tobar Vargas (born 13 April 1978) is a Chilean association football referee, who has been a FIFA international referee since 2011. He has officiated at the Copa Sudamericana, South American U-17 Championship, FIFA U-17 World Cup, Copa Libertadores, and the Recopa Sudamericana. Provided by Wikipedia
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bachelorThesis
Published in 2012
Repository Repositorio Pontificia Universidad Católica del Ecuador
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bachelorThesis
Published in 2021
Repository Repositorio Universidad Técnica de Babahoyo