Path diagram for mediation analysis model with multiple mediators.

Mediation (statistics) - Wikipedia

The Analysis of Mechanisms and Their Contingencies: PROCESS versus Structural Equation Modeling - Andrew F. Hayes, Amanda K. Montoya, Nicholas J. Rockwood, 2017

mma: An R Package for Mediation Analysis with Multiple Mediators - Journal of Open Research Software

r - Path Analysis with multiple mediators and predictors - Cross Validated

GLM mediation models

Conditional Process Analysis: Concepts, Computation, and Advances in the Modeling of the Contingencies of Mechanisms - Andrew F. Hayes, Nicholas J. Rockwood, 2020

Application of an analytical framework for multivariate mediation analysis of environmental data

IJERPH, Free Full-Text

Full article: Variable Selection for Mediators under a Bayesian Mediation Model

Frontiers Clarifying the Implicit Assumptions of Two-Wave Mediation Models via the Latent Change Score Specification: An Evaluation of Model Fit Indices