David Kenneth Fieldhouse argues that Serbuni did not formally seize control of the Unilever factories, as foreign enterprises taken over by unions were nationalized by presidential decree.
David Kenneth Fieldhouse berpendapat bahwa Serbuni tidak secara resmi mengambil alih pabrik-pabrik Unilever, karena perusahaan asing yang diambil alih serikat buruh dinasionalisasikan melalui dekret presiden.