In 1925, alongside other IMRO members, Rizov participated in Vienna in the founding conference of IMRO (United).[19][20] He became a member of the Central Committee of the organization.[21][22]
↑ Popovski, V. T. (1999). Македонский вопрос в документах Коминтерна: ч. 1. 1923-1925 гг. p.756.
↑ Popovski, Vlado (1999). Makedonskoto prašanje vo dokumentite na Kominternata: ch.1. 1923-1925 gg. D. Vlakhov gave the following characteristic of R. Rizov: "Rizo Rizov from Veles, a great Macedonian hero, comrade in arms of Delchev, founder, together with Panko Brashnarov, of our Macedonian revolutionary organization VMRO (United)
↑ Gorgiev, Vancho (2007). Петар Поп Арсов: прилог кон проучувањето на македонското националноослободително движење. University of Michigan. p.131.{{cite book}}: CS1 maint: location missing publisher (link)
↑ Силянов, Христо, „Освободителнитѣ борби на Македония, II“, стр.297
↑ Pandevski, Manol (1983). Vnatrešnata makedonska revolucionerna organizacija i neovrhovizmot, 1904-1908. University of Michigan. p.139.{{cite book}}: CS1 maint: location missing publisher (link)
↑ Martulkov, Alekso (1954). My Participation in The Macedonian Revolutionary Battle. Skopje. p.266.{{cite book}}: CS1 maint: location missing publisher (link)
↑ Ristovski, Blaze (1978). Dimitrija Čupovski (1878-1940) i Makedonskoto naučno-literaturno drugarstvo vo Petrograd. the University of Michigan. p.49.{{cite book}}: CS1 maint: location missing publisher (link)
↑ Cvetovska, Nadezhda (1990). Political activity of the Macedonian emigrants in Bulgaria from 1918 to 1929. the University of California. p.149.{{cite book}}: CS1 maint: location missing publisher (link)
↑ Makedonija: ilustrirano spisanie na Maticata na iselenicite od Makedonija, Issues 429-440. 1989. p.26.
↑ Алексо Мартулков, Моето учество во револуционерните борби на Македонија. Скопје 1954. 255-256.
↑ Ристовский, Блаже. Димитрий Чуповский и македонское национальное сознание, ОАО Издательство „Радуга“, Москва, 1999, с. 76.
↑ Ristovski, Blaze (1999). Macedonia and the Macedonian People. the University of Michigan. p.280.{{cite book}}: CS1 maint: location missing publisher (link)
↑ Katadzhiev, Ivan (2000). Историја на македонскиот народ: Македонија међу Балканските и Втората светска војна (1912-1941). Indiana University. p.392.{{cite book}}: CS1 maint: location missing publisher (link)
↑ Pandevski, Manol (1995). Македонија и Балканот во Петроградското списание "Современник" (1912-1913). the University of Michigan. p.83.{{cite book}}: CS1 maint: location missing publisher (link)
↑ Пелтеков, Александър Г. Революционни дейци от Македония и Одринско. Второ допълнено издание. София, Орбел, 2014. ISBN9789544961022, с. 408.