Help me to change the sources in two assignment to correct form

Voting rights is incorrect form

Texas general election is wrong sources
This is the comment:
You have used citations in this assignment that do not connect to the material that you are writing about. The working paper authored by Jonas Klarins, covers the cost of campaigns for a two-year versus a four-year governor’s race. The page numbers you include in your citations are not connected to the material you claim you are sourcing. The Klarin’s paper is available at https://pdfs.semanticscholar.org/8719/77b3f0587bf1ac6aa8ed9d8c77c43d9b666b.pdf?_ga=2.253171530.273830706.1574313951-476912163.1574313951