Tal, Petrosian, Spassky and Korchnoi: A by Soltis, Andrew

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Match of the Century & Spassky's Immortal: 50 years on

Petrosian Spassky: World Championship Match: Round 10: 1966

BORIS SPASSKY VS TIGRAN PETROSIAN WORLD CHAMPIONSHIP MATCH 1966..TORRE ATTACK:CLASSICAL DEFENCE, DAILY CHESS:A very interesting,baffling and ultimately instructive game.., By Chess Hustlers

USSR vs Rest of the World: A look back - Stabroek News

Boris Spassky vs Tigran V Petrosian World Championship Match (1966)

Could Petrosian have held against Fischer?

Tigran Petrosian Top Chess Players

Games - Top 10 Games of The 1960s - Taming The Tiger - Spassky VS Petrosian, 1969

Party Animal: the lost triumph of Tigran Petrosian