Anton Reicha, “Principles of Large Binary Form” pp. 49-58, and “On the Practice of Melody” pp. 76-94, in Treatise on Melody, trans. Peter M. Landey Hillsdale, NY: Pendragon Press, 2000) Melodic Examples, pp. 146-159 and 171-187 correspond to above chapters.
Simon P. Keefe, “Antoine Reicha's "Dialogue": The Emergence of a Theoretical Concept,” Acta Musicologica 72/1 (2000), 43–62.
Jospeh Riepel, "Principles of Tonal Order, Generally" in Foundations of Musical Composition (1755), trans. John Walter Hill (Hillsdale, NY: Pendragon Press, 2015), just scan pp. 193–285 for the flavor of his discourse.
Brief excerpts on phrase and form by Sulzer, Riepel, Mattheson, Koch and Kirnberger
Peter M. Landey, "Issues in the Development of Anton Reicha's Theory of "Grande Couple Binaire" Revista Musicologica 16/6 (1993), 3568-3577.